@article{Heller2000,
  author    = {Heller, Wilfried},
  title     = {Zur sozio{\"o}konomischen Transformation im l{\"a}ndlichen Raum Rum{\"a}niens : Arbeitsmarkt und Besch{\"a}ftigungssituation sowie Lebensstandard und Einkommensverh{\"a}ltnisse aus der Sicht von Institutionen und anderen Akteuren unterschiedlicher Ebenen},
  year      = {2000},
  language  = {de}
}
@article{Heller2006,
  author    = {Heller, Wilfried},
  title     = {Zur Bedeutung von Ethnizit{\"a}t in Transformationsl{\"a}ndern unter dem Einfluss von Globalisierung},
  editor    = {Sallanz, Josef},
  year      = {2006},
  language  = {de}
}
@article{Heller2000,
  author    = {Heller, Wilfried},
  title     = {Zukunftsperspektiven humangeographischer und regionalwissenschaftlicher Forschung},
  year      = {2000},
  language  = {de}
}
@misc{Heller2007,
  author    = {Heller, Wilfried},
  title     = {Wolf, J., Entwicklung der ethnischen Struktur des Banats 1890 - 1992; Berlin, Borntraeger, 1999},
  year      = {2007},
  language  = {de}
}
@article{Heller2001,
  author    = {Heller, Wilfried},
  title     = {Wirtschaftsr{\"a}umliche Entwicklung und Migration im post-sozialistischen Rum{\"a}nien},
  year      = {2001},
  language  = {de}
}
@article{HellerIanos2001,
  author    = {Heller, Wilfried and Ianos, I.},
  title     = {Wirtschaftsr{\"a}umliche Entwicklung in Rum{\"a}nien nach der Wende},
  year      = {2001},
  language  = {de}
}
@article{Heller2007,
  author    = {Heller, Wilfried},
  title     = {Vorwort},
  isbn      = {978-3-939469-76-6},
  year      = {2007},
  language  = {de}
}
@article{ThiemeHeller2000,
  author    = {Thieme, Siegfried and Heller, Wilfried},
  title     = {Transformation in der Landwirtschaft und im l{\"a}ndlichen Raum der ostdeutschen Bundesl{\"a}nder},
  year      = {2000},
  language  = {de}
}
@article{Heller1998,
  author    = {Heller, Wilfried},
  title     = {Transformation : current importance of the subject, open questions and research deficits},
  year      = {1998},
  language  = {en}
}
@article{Heller1998,
  author    = {Heller, Wilfried},
  title     = {The non agricultural economy of rural post-socialist romania : insights ans perceptions of national, regional ans local institutions and experts},
  year      = {1998},
  language  = {en}
}
@article{Heller1999,
  author    = {Heller, Wilfried},
  title     = {Summary of part I: Objectives and perspectives of the transborder cooperation},
  year      = {1999},
  language  = {en}
}
@article{Heller2001,
  author    = {Heller, Wilfried},
  title     = {Studies on boundaries : subjects, questions, targets},
  year      = {2001},
  language  = {en}
}
@article{Heller2006,
  author    = {Heller, Wilfried},
  title     = {Studienreform im Lichte des Bologna-Prozesses (mit dem Beispiel Geographie der Universit{\"a}t Potsdam)},
  year      = {2006},
  language  = {de}
}
@article{Heller2002,
  author    = {Heller, Wilfried},
  title     = {Spatial development of the economy and spatial mobility in post-socialist Romania},
  year      = {2002},
  language  = {en}
}
@article{Heller1999,
  author    = {Heller, Wilfried},
  title     = {Sozio{\"o}konomische Aspekte der Transformation im l{\"a}ndlichen Raum Ostmitteleuropas: die Landwirtschaft Rum{\"a}niens als Beispiel},
  year      = {1999},
  language  = {de}
}
@article{Heller1999,
  author    = {Heller, Wilfried},
  title     = {Sozio{\"o}konomische Aspekte der Transformation im l{\"a}ndlichen Raum Ostmitteleuropas : die Landwirtschaft Rum{\"a}niens als Beispiel},
  year      = {1999},
  language  = {de}
}
@article{Heller1994,
  author    = {Heller, Wilfried},
  title     = {Sozialer und {\"o}konomischer Umbruch in Nordhausen (Nordth{\"u}ringen) nach der politischen Wende (1989 - 1992) : Erfahrungen und Einsch{\"a}tzungen von lokalen Institutionen und Akteuren sowie von der betroffenen Bev{\"o}lkerung},
  year      = {1994},
  language  = {de}
}
@article{FelgentreffHellerLindneretal.2000,
  author    = {Felgentreff, Carsten and Heller, Wilfried and Lindner, Waltraud and Thieme, Siegfried and Viehrig, Hans},
  title     = {Socio-Economic Transformation of East Germany},
  year      = {2000},
  language  = {en}
}
@article{Heller2001,
  author    = {Heller, Wilfried},
  title     = {Socio-economic transformation in rural romania through the eyes of experts : migration and social-demographic issues},
  year      = {2001},
  language  = {en}
}
@article{Heller2001,
  author    = {Heller, Wilfried},
  title     = {Rum{\"a}nien vor den Toren der Europ{\"a}ischen Union : Migration, Landwirtschaft und l{\"a}ndlicher Raum},
  year      = {2001},
  language  = {de}
}
@article{Heller1994,
  author    = {Heller, Wilfried},
  title     = {Relations across the boundaries between the old and the new L{\"a}nder in Germany after reunification : which side makes more profit?},
  year      = {1994},
  language  = {en}
}
@article{Heller2009,
  author    = {Heller, Wilfried},
  title     = {Problemaufriss der Thematik und {\"U}berblick {\"u}ber die Beitr{\"a}ge dieses Bandes},
  series = {Potsdamer geographische Forschungen},
  journal   = {Potsdamer geographische Forschungen},
  number    = {28},
  issn      = {0940-9688},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-38760},
  pages     = {9 -- 20},
  year      = {2009},
  language  = {de}
}
@article{BeckerHeller2002,
  author    = {Becker, J{\"o}rg and Heller, Wilfried},
  title     = {Polnische Saisonarbeiter in der Bundesrepublik Deutschland : politische und {\"o}konomische Bedingungen eines spezifischen tempor{\"a}ren Arbeitsmigrationssystems},
  year      = {2002},
  language  = {de}
}
@article{HellerFelgentreff2000,
  author    = {Heller, Wilfried and Felgentreff, Carsten},
  title     = {On the study of socio-economic transformation and migration in rural areas of post-socialist countries},
  year      = {2000},
  language  = {en}
}
@article{Heller1998,
  author    = {Heller, Wilfried},
  title     = {Migration, socio-economic transformation and perspectives of regional development},
  year      = {1998},
  language  = {en}
}
@article{Heller2002,
  author    = {Heller, Wilfried},
  title     = {Migration, Segregation und Integration von Aussiedlern-Ursachen, Zusammenh{\"a}nge und Probleme},
  year      = {2002},
  language  = {de}
}
@article{Heller1997,
  author    = {Heller, Wilfried},
  title     = {Migration und sozio{\"o}konomische Transformation in S{\"u}dosteuropa : zur aktuellen Bedeutung des Themas, zu Forschungsdefiziten und zu offenen Fragen},
  year      = {1997},
  language  = {de}
}
@article{Heller1999,
  author    = {Heller, Wilfried},
  title     = {Migration und l{\"a}ndlicher Raum im post-sozialistischen Rum{\"a}nien},
  year      = {1999},
  language  = {de}
}
@misc{Heller2007,
  author    = {Heller, Wilfried},
  title     = {Knappe, E., Transformation der Landwirtschaft in Mittel- und S{\"u}dosteuropa; Berlin, Borntr{\"a}ger, 2004},
  year      = {2007},
  language  = {de}
}
@book{Heller1995,
  author    = {Heller, Wilfried},
  title     = {Klingenthal - quo vadis? : Auswirkungen des gesellschaftlichen Umbruchs in einer Kleinstadt an der s{\"a}chsisch-b{\"o}hmischen Grenze},
  series = {Beitr{\"a}ge zur Kommunal- und Regionalentwicklung},
  volume    = {15},
  journal   = {Beitr{\"a}ge zur Kommunal- und Regionalentwicklung},
  publisher = {Jurczek},
  address   = {Chemnitz},
  pages     = {54 S.},
  year      = {1995},
  language  = {de}
}
@misc{Heller1998,
  author    = {Heller, Wilfried},
  title     = {Kleger, H., Metropolitane Transformation durch urbane Regime, Berlin-Brandenburg auf dem Weg zu regionaler Handlungsf{\"a}higkeit; Amsterdam, Verl. Fakultas, 1996},
  year      = {1998},
  language  = {de}
}
@article{Heller1998,
  author    = {Heller, Wilfried},
  title     = {Introduction : migration, socio-economic transformation and perspectives of regional development in the rural areas of romania ; report on a German - Romanian reseach project},
  year      = {1998},
  language  = {en}
}
@article{HellerDokaBerxholietal.2004,
  author    = {Heller, Wilfried and Doka, Dhimiter and B{\"e}rxholi, A. and Felgentreff, Carsten},
  title     = {Internal population redistribution in post-socialist Albania},
  issn      = {0721-2887},
  year      = {2004},
  language  = {en}
}
@book{Heller1999,
  author    = {Heller, Wilfried},
  title     = {Innenansichten aus dem postsozialistischen Rum{\"a}nien : sozio{\"o}konomische Transformation, Migration und Entwicklungsperspektiven im l{\"a}ndlichen Raum},
  publisher = {Spitz},
  address   = {Berlin},
  pages     = {227 S.},
  year      = {1999},
  language  = {de}
}
@phdthesis{Heller2006,
  author    = {Heller, Wilfried},
  title     = {Heller, W., The 'Bohemians' in New Zealand : an ethnik group?; Auckland, Univ., 2005},
  year      = {2006},
  language  = {en}
}
@phdthesis{Heller2006,
  author    = {Heller, Wilfried},
  title     = {Heller, W., The 'Bohemians' in New Zealand : an ethnik group?; Auckland, Univ., 2005},
  year      = {2006},
  language  = {en}
}
@article{Heller1994,
  author    = {Heller, Wilfried},
  title     = {Grenz{\"u}berschreitende Beziehungen zwischen den alten und den neuen Bundesl{\"a}ndern in Deutschland nach der politischen Wende : welche Seite profitiert am meisten? ; Beobachtungen im hessisch-nieders{\"a}chsisch- th{\"u}ringischen Grenzraum},
  year      = {1994},
  language  = {de}
}
@article{Heller2006,
  author    = {Heller, Wilfried},
  title     = {Grenzen und Minderheiten : Einf{\"u}hrung},
  year      = {2006},
  language  = {de}
}
@article{Heller2000,
  author    = {Heller, Wilfried},
  title     = {Grenzen und ihre Erforschung : Gegenst{\"a}nde, Fragestellungen, Zielsetzungen},
  year      = {2000},
  language  = {de}
}
@article{BuerknerHofmannHeller1997,
  author    = {B{\"u}rkner, Hans-Joachim and Hofmann, Hans-J{\"u}rgen and Heller, Wilfried},
  title     = {Geographische Aussiedlerforschung in den achtziger und neunziger Jahren},
  year      = {1997},
  language  = {de}
}
@misc{GansHeller1996,
  author    = {Gans, Paul and Heller, Wilfried},
  title     = {Fachsitzung 1: Transformation und Bev{\"o}lkerungsprozesse in Deutschland},
  year      = {1996},
  language  = {de}
}
@article{Heller1998,
  author    = {Heller, Wilfried},
  title     = {Experiences and assessments of the transformation from private households point of view},
  year      = {1998},
  language  = {en}
}
@article{Heller2002,
  author    = {Heller, Wilfried},
  title     = {European border cities in the process of radial change-new urban forms in the transition from national isolation to transnational networks},
  year      = {2002},
  language  = {en}
}
@article{HellerBeckerBelinaetal.2007,
  author    = {Heller, Wilfried and Becker, J{\"o}rg and Belina, Bernd and Lindner, Waltraud},
  title     = {Ethnizit{\"a}t - Globalisierung - Transformation - S{\"u}dosteuropa},
  year      = {2007},
  language  = {de}
}
@article{Heller2004,
  author    = {Heller, Wilfried},
  title     = {Ethnicity and globalisation : on the significance of ethnical categories in countries undergoing transition},
  issn      = {0016-7479},
  year      = {2004},
  abstract  = {During the 1990s, ethnic conflict and war placed tremendous strain on a number of countries undergoing transition in Eastern and South Eastern Europe. The reasons for these conflicts can be better understood by examining the history of these countries and their ethnic groups. This paper tries to find out why this kind of conflict has arisen during transition, taking into account the fact that the affected states are now subject to globalisation processes to an unprecedented extent. The study begins with an overview of the ways in which the term ethnicity has been used in the past, and discusses several theoretical approaches to explaining ethnic conflict. Socially relevant aspects of the new critical cultural geography may also be of use. The paper concludes that a qualified, constructivist ethnicity concept could provide a better explanation of the complex phenomenon of ethnically influenced politics and ethnic conflict. The paper also discusses the process of globalisation, as this can contribute additional perspectives as well as spatially differentiated knowledge of the significance of economic, social and political structures and national and supranational institutions for different ethnic groups and their living conditions. The paper concludes by offering suggestions for reducing or preventing ethnic conflict},
  language  = {en}
}
@misc{HellerSaupeFelgentreffetal.2006,
  author    = {Heller, Wilfried and Saupe, Gabriele and Felgentreff, Carsten and Lindner, Waltraud},
  title     = {Entrepreneurial initiative and regional development: supporting policies in the land of Brandenburg (Eastern Germany)},
  year      = {2006},
  language  = {en}
}
@article{HellerFelgentreffLindneretal.2001,
  author    = {Heller, Wilfried and Felgentreff, Carsten and Lindner, Waltraud and Saupe, Gabriele},
  title     = {Entrepreneurial initiative and regional development : supporting policies in the Land of Brandenburg},
  year      = {2001},
  language  = {en}
}
@misc{BeckerHeller1998,
  author    = {Becker, J{\"o}rg and Heller, Wilfried},
  title     = {Die nichtdeutsche Bev{\"o}lkerung in Ostdeutschland : eine Studie zur r{\"a}umlichen Segregation und Wohnsituation. Projektleitung: Wilfried Heller},
  series = {Potsdamer geographische Forschungen},
  volume    = {15},
  journal   = {Potsdamer geographische Forschungen},
  publisher = {Inst. f{\"u}r Geographie und Geo{\"o}kologie},
  address   = {Potsdam},
  issn      = {0940-9688},
  pages     = {160 S. : graph. Darst.},
  year      = {1998},
  language  = {de}
}
@article{Heller2007,
  author    = {Heller, Wilfried},
  title     = {Die demographische Lage Deutschlands : ein {\"U}berblick},
  year      = {2007},
  language  = {de}
}
@article{Heller2006,
  author    = {Heller, Wilfried},
  title     = {Demographie, Migration und r{\"a}umliche Entwicklung in Rum{\"a}nien : Rum{\"a}nien, quo vadis?},
  year      = {2006},
  language  = {de}
}
@article{Heller2006,
  author    = {Heller, Wilfried},
  title     = {Demographie, Migration und r{\"a}umliche Entwicklung},
  year      = {2006},
  language  = {de}
}
@article{Heller1997,
  author    = {Heller, Wilfried},
  title     = {Defizite und offene Fragen der Migrations- und Transformationsforschung in S{\"u}dosteuropa : Behandlung durch die Beitr{\"a}ge der Referentinnen und Referenten des Symposiums},
  year      = {1997},
  language  = {de}
}
@misc{Heller1999,
  author    = {Heller, Wilfried},
  title     = {Buchhofer, E. (Hrsg.), Agrarwirtschaft und l{\"a}ndlicher Raum Ostmitteleuropas in der Transformation; Marburg, Herder-Inst., 1998},
  year      = {1999},
  language  = {de}
}
@misc{Heller1999,
  author    = {Heller, Wilfried},
  title     = {Brunn, G. (Hrsg.), Regionen und Regionsbildung in Europa, Konzeptionen der Forschung und empirische Befunden; Baden-Baden, Nomos, 1996},
  year      = {1999},
  language  = {de}
}
@article{Heller1998,
  author    = {Heller, Wilfried},
  title     = {Binnenmigration und Probleme des l{\"a}ndlichen Raums im postsozialistischen Rum{\"a}nien},
  year      = {1998},
  language  = {de}
}
@article{BuerknerHeller2000,
  author    = {B{\"u}rkner, Hans-Joachim and Heller, Wilfried},
  title     = {Aspekte der j{\"u}ngeren Zentralit{\"a}tsforschung in Ostmittel- und S{\"u}dosteuropa : ver{\"a}nderte Perspektiven f{\"u}r die Bewertung der St{\"a}dte Siebenb{\"u}rgens?},
  year      = {2000},
  language  = {de}
}
@misc{Heller1999,
  author    = {Heller, Wilfried},
  title     = {Albrecht, V. (Hrsg.), Ungarn in Europa, gesellschaftlicher und raumstruktureller Wandel in Vergangenheit und Gegenwart; Frankfurt am Main, Inst. f{\"u}r Didaktik der Geographie, 1998},
  year      = {1999},
  language  = {de}
}