TY - JOUR A1 - Clahsen, Harald A1 - Siegmüller, Julia A1 - Penke, Martina A1 - Schröder, Astrid A1 - Hofmann, Janine A1 - Holzgrefe-Lang, Julia A1 - Skerra, Antje A1 - Adani, Flavia A1 - Gagarina, Natalʹja Vladimirovna A1 - Schröter, Carolin A1 - Frieg, Hendrike A1 - Belke, Eva A1 - Schwab, Susanne A1 - Seifert, Susanne A1 - Watko, Petra A1 - Obendrauf, Tanja A1 - Trauntschnig, Mike A1 - Gasteiger-Klicpera, Barbara A1 - Adelt, Anne A1 - Hanne, Sandra A1 - Burchert, Frank A1 - Swietza, Romy A1 - Doppelbauer, Lea A1 - Dralle, Jenny A1 - Purat, Patricia A1 - Webersinke, Dorothea A1 - Schwytay, Jeannine A1 - Stadie, Nicole A1 - Hoppe, Carina A1 - Heide, Judith A1 - Marusch, Tina A1 - von der Malsburg, Titus Raban A1 - Bastiaanse, Roelien A1 - Schultheiss, Corinna A1 - Nahrstaedt, Holger A1 - Schauer, Thomas A1 - Seidl, Rainer Ottis A1 - Rath, Elisa ED - Fritzsche, Tom ED - Meyer, Corinna B. ED - Adelt, Anne ED - Roß, Jennifer T1 - Spektrum Patholinguistik = Schwerpunktthema: Labyrinth Grammatik: Therapie von syntaktischen Störungen bei Kindern und Erwachsenen N2 - Das Herbsttreffen Patholinguistik wird seit 2007 jährlich vom Verband für Patholinguistik e.V. (vpl) durchgeführt. Das 6. Herbsttreffen mit dem Schwerpunktthema "Labyrinth Grammatik: Therapie von syntaktischen Störungen bei Kindern und Erwachsenen" fand am 17.11.2012 in Potsdam statt. Im vorliegenden Tagungsband finden sich alle Beiträge der Veranstaltung: die vier Hauptvorträge zum Schwerpunkthema, die Vorträge aus Praxis und Forschung von vier Patholinguistinnen in der Reihe Spektrum Patholinguistik sowie die Abstracts der Posterpräsentation. N2 - The 'Herbsttreffen Patholinguistik' is an annual conference organized by the Association for Patholinguistics (Verband für Patholinguistik e.V./vpl) since 2007. The 6th Herbsttreffen with its theme "Labyrinth Grammar: Therapy of Syntactic Disorders in Children and Adults" took place on November 17th, 2012 in Potsdam. These proceedings contain all contributions of the meeting: the four keynote talks, the talks on speech/language therapy and research in the section "Spektrum Patholinguistik" by four patholinguists as well as the abstracts of the poster session. T3 - Spektrum Patholinguistik - 6 KW - Patholinguistik KW - syntaktische Störungen KW - Aphasie KW - Agrammatismus KW - Dysgrammatismus KW - patholinguistics KW - speech/language therapy KW - syntactic disorders KW - aphasia KW - agrammatism Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-67659 SN - 978-3-86956-270-4 SN - 1869-3822 SN - 1866-9433 IS - 6 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - JOUR A1 - Holzgrefe-Lang, Julia A1 - Wellmann, Caroline A1 - Höhle, Barbara A1 - Wartenburger, Isabell T1 - Infants’ Processing of Prosodic Cues BT - Electrophysiological Evidence for Boundary Perception beyond Pause Detection JF - Language and speech N2 - Infants as young as six months are sensitive to prosodic phrase boundaries marked by three acoustic cues: pitch change, final lengthening, and pause. Behavioral studies suggest that a language-specific weighting of these cues develops during the first year of life; recent work on German revealed that eight-month-olds, unlike six-month-olds, are capable of perceiving a prosodic boundary on the basis of pitch change and final lengthening only. The present study uses Event-Related Potentials (ERPs) to investigate the neuro-cognitive development of prosodic cue perception in German-learning infants. In adults’ ERPs, prosodic boundary perception is clearly reflected by the so-called Closure Positive Shift (CPS). To date, there is mixed evidence on whether an infant CPS exists that signals early prosodic cue perception, or whether the CPS emerges only later—the latter implying that infantile brain responses to prosodic boundaries reflect acoustic, low-level pause detection. We presented six- and eight-month-olds with stimuli containing either no boundary cues, only a pitch cue, or a combination of both pitch change and final lengthening. For both age groups, responses to the former two conditions did not differ, while brain responses to prosodic boundaries cued by pitch change and final lengthening showed a positivity that we interpret as a CPS-like infant ERP component. This hints at an early sensitivity to prosodic boundaries that cannot exclusively be based on pause detection. Instead, infants’ brain responses indicate an early ability to exploit subtle, relational prosodic cues in speech perception—presumably even earlier than could be concluded from previous behavioral results. KW - Language acquisition KW - speech perception KW - event-related potentials KW - prosody processing KW - prosodic boundary cues Y1 - 2018 U6 - https://doi.org/10.1177/0023830917730590 SN - 0023-8309 SN - 1756-6053 VL - 61 IS - 1 SP - 153 EP - 169 PB - Sage Publ. CY - London ER - TY - JOUR A1 - Krause, Carina Denise A1 - Wagner, Susanne A1 - Holzgrefe-Lang, Julia A1 - Lorenz, Elisa A1 - Oelze, Vera A1 - Schütz, Vivien A1 - Peinhardt, Ulrich A1 - Glück, Christian W. T1 - Diagnostik des auditiven Sprachverstehens bei Jugendlichen – die App »Leipziger Sprach-Instrumentarium Jugend« (LSI.J) JF - Spektrum Patholinguistik Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-474937 SN - 978-3-86956-488-3 SN - 1866-9433 SN - 1869-3822 VL - 2020 IS - 13 SP - 87 EP - 98 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - JOUR A1 - Holzgrefe-Lang, Julia A1 - Wellmann, Caroline A1 - Petrone, Caterina A1 - Truckenbrodt, Hubert A1 - Höhle, Barbara A1 - Wartenburger, Isabell T1 - Brain response to prosodic boundary cues depends on boundary position JF - Frontiers in psychology N2 - Prosodic information is crucial for spoken language comprehension and especially for syntactic parsing, because prosodic cues guide the hearer's syntactic analysis. The time course and mechanisms of this interplay of prosody and syntax are not yet well-understood. In particular, there is an ongoing debate whether local prosodic cues are taken into account automatically or whether they are processed in relation to the global prosodic context in which they appear. The present study explores whether the perception of a prosodic boundary is affected by its position within an utterance. In an event-related potential (PRP) study we tested if the brain response evoked by the prosodic boundary differs when the boundary occurs early in a list of three names connected by conjunctions (i.e., after the first name) as compared to later in the utterance (i.e., after the second name). A closure positive shift (CPS)-marking the processing of a prosodic phrase boundary-was elicited for stimuli with a late boundary, but not for stimuli with an early boundary. This result is further evidence for an immediate integration of prosodic information into the parsing of an utterance. In addition, it shows that the processing of prosodic boundary cues depends on the previously processed information from the preceding prosodic context. KW - prosodic boundaries KW - event-related potentials KW - closure positive shift KW - speech perception KW - prosody Y1 - 2013 U6 - https://doi.org/10.3389/fpsyg.2013.00421 SN - 1664-1078 VL - 4 IS - 28 PB - Frontiers Research Foundation CY - Lausanne ER - TY - JOUR A1 - Räling, Romy A1 - Holzgrefe-Lang, Julia A1 - Schröder, Astrid A1 - Wartenburger, Isabell T1 - On the influence of typicality and age of acquisition on semantic processing: Diverging evidence from behavioural and ERP responses JF - Neuropsychologia : an international journal in behavioural and cognitive neuroscience N2 - Various behavioural studies show that semantic typicality (TYP) and age of acquisition (AOA) of a specific word influence processing time and accuracy during the performance of lexical-semantic tasks. This study examines the influence of TYP and AOA on semantic processing at behavioural (response times and accuracy data) and electrophysiological levels using an auditory category-member-verification task. Reaction time data reveal independent TYP and AOA effects, while in the accuracy data and the event-related potentials predominantly effects of TYP can be found. The present study thus confirms previous findings and extends evidence found in the visual modality to the auditory modality. A modality-independent influence on semantic word processing is manifested. However, with regard to the influence of AOA, the diverging results raise questions on the origin of AOA effects as well as on the interpretation of offline and online data. Hence, results will be discussed against the background of recent theories on N400 correlates in semantic processing. In addition, an argument in favour of a complementary use of research techniques will be made. (C) 2015 Elsevier Ltd. All rights reserved. KW - Event-related potentials KW - N400 KW - Semantic typicality KW - Age of acquisition KW - Semantic priming KW - Category verification Y1 - 2015 U6 - https://doi.org/10.1016/j.neuropsychologia.2015.05.031 SN - 0028-3932 SN - 1873-3514 VL - 75 SP - 186 EP - 200 PB - Elsevier CY - Oxford ER - TY - JOUR A1 - Wellmann, Caroline A1 - Holzgrefe-Lang, Julia A1 - Truckenbrodt, Hubert A1 - Wartenburger, Isabell A1 - Höhle, Barbara T1 - How each prosodic boundary cue matters evidence from German infants JF - Frontiers in psychology N2 - Previous studies have revealed that infants aged 6-10 months are able to use the acoustic correlates of major prosodic boundaries, that is, pitch change, preboundary lengthening, and pause, for the segmentation of the continuous speech signal. Moreover, investigations with American-English- and Dutch-learning infants suggest that processing prosodic boundary markings involves a weighting of these cues. This weighting seems to develop with increasing exposure to the native language and to underlie crosslinguistic variation. In the following, we report the results of four experiments using the headturn preference procedure to explore the perception of prosodic boundary cues in German infants. We presented 8-month-old infants with a sequence of names in two different prosodic groupings, with or without boundary markers. Infants discriminated both sequences when the boundary was marked by all three cues (Experiment 1) and when it was marked by a pitch change and preboundary lengthening in combination (Experiment 2). The presence of a pitch change (Experiment 3) or preboundary lengthening (Experiment 4) as single cues did not lead to a successful discrimination. Our results indicate that pause is not a necessary cue for German infants. Pitch change and preboundary lengthening in combination, but not as single cues, are sufficient. Hence, by 8 months infants only rely on a convergence of boundary markers. Comparisons with adults' performance on the same stimulus materials suggest that the pattern observed with the 8-month-olds is already consistent with that of adults. We discuss our findings with respect to crosslinguistic variation and the development of a language-specific prosodic cue weighting. KW - infants KW - language acquisition KW - speech perception KW - prosodic bootstrapping KW - prosodic boundary cues KW - cue weighting KW - intonation phrase boundary KW - headturn preference procedure Y1 - 2012 U6 - https://doi.org/10.3389/fpsyg.2012.00580 SN - 1664-1078 VL - 3 PB - Frontiers Research Foundation CY - Lausanne ER - TY - JOUR A1 - Holzgrefe-Lang, Julia A1 - Wellmann, Caroline A1 - Petrone, Caterina A1 - Raeling, Romy A1 - Truckenbrodt, Hubert A1 - Höhle, Barbara A1 - Wartenburger, Isabell T1 - How pitch change and final lengthening cue boundary perception in German: converging evidence from ERPs and prosodic judgements JF - Language, cognition and neuroscience N2 - This study examines the role of pitch and final lengthening in German intonation phrase boundary (IPB) perception. Since a prosody-related event-related potential (ERP) component termed Closure Positive Shift reflects the processing of major prosodic boundaries, we combined ERP and behavioural measures (i.e. a prosodic judgement task) to systematically test the impact of sole and combined cue occurrences on IPB perception. In two experiments we investigated whether adult listeners perceived an IPB in acoustically manipulated speech material that contained none, one, or two of the prosodic boundary cues. Both ERP and behavioural results suggest that pitch and final lengthening cues have to occur in combination to trigger IPB perception. Hence, the combination of behavioural and electrophysiological measures provides a comprehensive insight into prosodic boundary cue perception in German and leads to an argument in favour of interrelated cues from the frequency (i.e. pitch change) and the time (i.e. final lengthening) domain. KW - Speech perception KW - prosody KW - Event-Related Potential (ERP) technique KW - Closure Positive Shift (CPS) KW - prosodic boundary cues Y1 - 2016 U6 - https://doi.org/10.1080/23273798.2016.1157195 SN - 2327-3798 SN - 2327-3801 VL - 31 SP - 904 EP - 920 PB - Begell House CY - Abingdon ER - TY - JOUR A1 - Petrone, Caterina A1 - Truckenbrodt, Hubert A1 - Wellmann, Caroline A1 - Holzgrefe-Lang, Julia A1 - Wartenburger, Isabell A1 - Höhle, Barbara T1 - Prosodic boundary cues in German BT - evidence from the production and perception of bracketed lists JF - Journal of phonetics N2 - This study investigates prosodic phrasing of bracketed lists in German. We analyze variation in pauses, phrase-final lengthening and f0 in speech production and how these cues affect boundary perception. In line with the literature, it was found that pauses are often used to signal intonation phrase boundaries, while final lengthening and f0 are employed across different levels of the prosodic hierarchy. Deviations from expectations based on the standard syntax-prosody mapping are interpreted in terms of task-specific effects. That is, we argue that speakers add/delete prosodic boundaries to enhance the phonological contrast between different bracketings in the experimental task. In perception, three experiments were run, in which we tested only single cues (but temporally distributed at different locations of the sentences). Results from identification tasks and reaction time measurements indicate that pauses lead to a more abrupt shift in listeners׳ prosodic judgments, while f0 and final lengthening are exploited in a more gradient manner. Hence, pauses, final lengthening and f0 have an impact on boundary perception, though listeners show different sensitivity to the three acoustic cues. KW - Prosodic boundary KW - Phrase-final lengthening KW - Pause KW - f0 peaks KW - Production KW - Perception KW - German Y1 - 2017 U6 - https://doi.org/10.1016/j.wocn.2017.01.002 SN - 0095-4470 VL - 61 SP - 71 EP - 92 PB - Elsevier CY - London ER - TY - JOUR A1 - Holzgrefe-Lang, Julia ED - Fritzsche, Tom ED - Meyer, Corinna B. ED - Adelt, Anne ED - Roß, Jennifer T1 - EKP-Untersuchungen zur Verarbeitung prosodischer Hinweisreize JF - Spektrum Patholinguistik N2 - 1 Einleitung 2 Methode und Material 3 Erwachsenenstudie 4 Säuglingsstudie 5 Diskussion und Zusammenfassung 6 Literatur Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-68500 SN - 1866-9085 SN - 1866-9433 SP - 115 EP - 126 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - THES A1 - Holzgrefe-Lang, Julia T1 - Prosodic phrase boundary perception in adults and infants T1 - Die Wahrnehmung prosodischer Phrasengrenzen bei Erwachsenen und Säuglingen BT - what the brain reveals about contextual influence and the impact of prosodic cues N2 - Prosody is a rich source of information that heavily supports spoken language comprehension. In particular, prosodic phrase boundaries divide the continuous speech stream into chunks reflecting the semantic and syntactic structure of an utterance. This chunking or prosodic phrasing plays a critical role in both spoken language processing and language acquisition. Aiming at a better understanding of the underlying processing mechanisms and their acquisition, the present work investigates factors that influence prosodic phrase boundary perception in adults and infants. Using the event-related potential (ERP) technique, three experimental studies examined the role of prosodic context (i.e., phrase length) in German phrase boundary perception and of the main prosodic boundary cues, namely pitch change, final lengthening, and pause. With regard to the boundary cues, the dissertation focused on the questions which cues or cue combination are essential for the perception of a prosodic boundary and on whether and how this cue weighting develops during infancy. Using ERPs is advantageous because the technique captures the immediate impact of (linguistic) information during on-line processing. Moreover, as it can be applied independently of specific task demands or an overt response performance, it can be used with both infants and adults. ERPs are particularly suitable to study the time course and underlying mechanisms of boundary perception, because a specific ERP component, the Closure Positive Shift (CPS) is well established as neuro-physiological indicator of prosodic boundary perception in adults. The results of the three experimental studies first underpin that the prosodic context plays an immediate role in the processing of prosodic boundary information. Moreover, the second study reveals that adult listeners perceive a prosodic boundary also on the basis of a sub-set of the boundary cues available in the speech signal. Both ERP and simultaneously collected behavioral data (i.e., prosodic judgements) suggest that the combination of pitch change and final lengthening triggers boundary perception; however, when presented as single cues, neither pitch change nor final lengthening were sufficient. Finally, testing six- and eight-month-old infants shows that the early sensitivity for prosodic information is reflected in a brain response resembling the adult CPS. For both age groups, brain responses to prosodic boundaries cued by pitch change and final lengthening revealed a positivity that can be interpreted as a CPS-like infant ERP component. In contrast, but comparable to the adults’ response pattern, pitch change as a single cue does not provoke an infant CPS. These results show that infant phrase boundary perception is not exclusively based on pause detection and hint at an early ability to exploit subtle, relational prosodic cues in speech perception. N2 - Die Wahrnehmung prosodischer Phrasengrenzen spielt eine zentrale Rolle sowohl im frühen Spracherwerb als auch bei der auditiven Sprachperzeption: Prosodische Grenzmarkierungen sind insbesondere relevant, da sie den Sprachstrom gliedern (so genanntes chunking), dabei die syntaktische Struktur einer Äußerung widerspiegeln und zusammenhängende Sinneinheiten erkennbar machen. Um die der Verarbeitung prosodischer Information zugrunde liegenden Mechanismen und deren Erwerb besser charakterisieren zu können, befasst die vorliegende Dissertation mit Faktoren, die die Wahrnehmung prosodischer Grenzmarkierungen bei Erwachsenen und Säuglingen beeinflussen. Mithilfe der Erhebung Ereigniskorrelierter Hirnpotentiale (EKPs) wurde untersucht, welche Rolle der prosodische Kontext (hier: die Phrasenlänge) sowie die an Phrasengrenzen auftretenden Hinweisreize (sogenannte prosodische Cues) bei der Wahrnehmung prosodischer Grenzen im Deutschen spielen. Die untersuchten prosodischen Cues umfassen das Auftreten von Tonhöhenveränderung (pitch change) und finaler Dehnung (final lengthening) sowie Pausensetzung (pause). Es wurde hierbei der Frage nachgegangen, welche Cues oder Cue-Kombinationen für die Wahrnehmung einer Phrasengrenze relevant sind und ob bzw. wie sich diese Gewichtung im Säuglingsalter entwickelt. EKPs sind insbesondere geeignet, da sie als on-line Methode die unmittelbare Integration prosodischer Information beim Sprachverstehen erfassen und sowohl bei Erwachsenen als auch bei Säuglingen angewendet werden können. Zudem gibt es mit dem closure positive shift (CPS) eine als Korrelat der Wahrnehmung größerer prosodischer Grenzen etablierte EKP-Komponente. Die Ergebnisse der drei experimentellen Studien untermauern, dass der Äußerungskontext eine unmittelbare Rolle bei der Verarbeitung von prosodischen Grenzmarkierungen spielt. Darüber hinaus konnte gezeigt werden, dass erwachsene Hörer eine prosodische Grenze auch basierend auf einem Sub-Set der möglichen, im akustischen Signal verfügbaren, prosodischen Cues wahrnehmen: Die Kombination von Tonhöhenveränderung und finaler Dehnung ist ausreichend, um die Wahrnehmung einer Phrasengrenze zu evozieren; als alleinige Cues sind jedoch weder Tonhöhenveränderung noch finale Dehnung hinreichend. Dies offenbarte sich sowohl im Ausbleiben des CPS als auch in simultan erhobenen Verhaltensdaten (Beurteilung der prosodischen Struktur). Schließlich ergab die Untersuchung sechs- und achtmonatiger Säuglinge, dass sich die frühe Sensitivität für prosodische Informationen in einem neurophysiologischen Korrelat widerspiegelt, welches dem CPS bei Erwachsenen gleicht. Die EKP-Daten zeigten, dass sowohl sechs- als auch achtmonatige Säuglinge prosodische Phrasengrenzen anhand der Kombination von Tonhöhenveränderung und finaler Dehnung wahrnehmen, wohingegen die Tonhöhenveränderung allein auch bei Säuglingen keinen CPS auslöst. Bereits in diesem frühen Alter ist somit die Pause als Grenzmarkierung nicht zwingend erforderlich. KW - speech perception KW - language acquisition KW - prosody KW - event-related potentials (ERP) KW - prosodic phrase boundaries KW - prosodic boundary cues KW - Closure Positive Shift (CPS) KW - infants KW - Sprachwahrnehmung KW - Spracherwerb KW - Prosodie KW - Ereigniskorrelierte Hirnpotentiale (EKP) KW - prosodische Phrasengrenzen KW - prosodische Grenzmarkierungen KW - Closure Positive Shift (CPS) KW - Säuglinge Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-405943 ER - TY - JOUR A1 - Stadie, Nicole A1 - Ulrich, Tanja A1 - Glück, Christian W. A1 - Richter, Kerstin A1 - Klassert, Annegret A1 - Krause, Carina Denise A1 - Wagner, Susanne A1 - Holzgrefe-Lang, Julia A1 - Lorenz, Elisa A1 - Oelze, Vera A1 - Schütz, Vivien A1 - Peinhardt, Ulrich A1 - Laßmann, Inga A1 - Hanne, Sandra A1 - Wollenberg, Maxi A1 - Düring, Sarah A1 - Laubscheer, Ann-Katrin A1 - Heide, Judith A1 - Gruhn, Sophie A1 - Segers, Eliane A1 - Keuning, Jos A1 - Verhoeven, Ludo A1 - Obry, Svenja A1 - Bohn, Bianca A1 - Neise, Romy A1 - Pregla, Dorothea A1 - Wiehe, Lea A1 - Weiland, Katharina A1 - Wahl, Michael ED - Fritzsche, Tom ED - Breitenstein, Sarah ED - Wunderlich, Hanna ED - Ferchland, Lisa ED - Krug, Ragna T1 - Spektrum Patholinguistik Band 13. Schwerpunktthema: Nur ein Wort? Diagnostik und Therapie von Wortabrufstörungen bei Kindern und Erwachsenen T2 - Spektrum Patholinguistik N2 - Das 13. Herbsttreffen Patholinguistik mit dem Schwerpunktthema »Nur ein Wort? Diagnostik und Therapie von Wortabrufstörungen bei Kindern und Erwachsenen« fand am 16.11.2019 in Potsdam statt. Das Herbsttreffen wird seit 2007 jährlich vom Verband für Patholinguistik e.V. (vpl) in Kooperation mit dem Deutschen Bundesverband für akademische Sprachtherapie und Logopädie (dbs) und der Universität Potsdam durchgeführt. Der vorliegende Tagungsband beinhaltet die Hauptvorträge zum Schwerpunktthema sowie die Beiträge der Kurzvorträge im »Spektrum Patholinguistik« und der Posterpräsentationen zu weiteren Themen aus der sprachtherapeutischen Forschung und Praxis. N2 - The Thirteenth Autumn Meeting Patholinguistics with its main topic »Just a word? Diagnostics and therapy of word-finding difficulties in children and adults« took place in Potsdam on the 16th of November 2019. This annual meeting has been organised since 2007 by the Association for Patholinguistics (vpl) in cooperation with the German Federal Association for Academic Speech/Language Therapy and Logopaedics (dbs) and the University of Potsdam. The present proceedings feature the keynote presentations on the main topic as well as the short presentations from the section »Spectrum Patholinguistics« and from the poster session covering a broad range of areas in research and practice of speech/language therapy. T3 - Spektrum Patholinguistik - 13 KW - Patholinguistik KW - Sprachtherapie KW - Wortfindungsstörungen KW - Wortabruf KW - lexikalisch-semantische Verarbeitung KW - patholinguistics KW - speech/language therapy KW - word-finding difficulties KW - word retrieval KW - lexical-semantic processing Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-460777 SN - 978-3-86956-488-3 SN - 1866-9433 SN - 1869-3822 IS - 13 PB - Universitätsverlag Potsdam CY - Potsdam ER -