@article{ClassKoehlerKrawietz2018,
  author    = {Class, Fabian and K{\"o}hler, Ulrich and Krawietz, Marian},
  title     = {The Potsdam Grievance Statistics File},
  series = {Historical Methods},
  volume    = {51},
  journal   = {Historical Methods},
  number    = {2},
  publisher = {Routledge, Taylor \& Francis Group},
  address   = {Abingdon},
  issn      = {0161-5440},
  doi       = {10.1080/01615440.2018.1429970},
  pages     = {92 -- 114},
  year      = {2018},
  abstract  = {The newly collected Potsdam Grievance Statistics File (PGSF) holds data on the number and topics of grievances (Eingaben) that were addressed to local authorities of the German Democratic Republic (GDR) in the years 1970 to 1989. The PGSF allows quantitative analyses on topics such as participation, quality of life, and value change in the German Democratic Republic. This paper introduces the concepts of the data set and discusses the validity of its contents.},
  language  = {en}
}
@article{RolfPauleitWiggering2018,
  author    = {Rolf, Werner and Pauleit, Stephan and Wiggering, Hubert},
  title     = {A stakeholder approach, door opener for farmland and multifunctionality in urban green infrastructure},
  series = {Urban forestry \& urban greening},
  volume    = {40},
  journal   = {Urban forestry \& urban greening},
  publisher = {Urban \& Fischer},
  address   = {Jena},
  issn      = {1618-8667},
  doi       = {10.1016/j.ufug.2018.07.012},
  pages     = {73 -- 83},
  year      = {2018},
  abstract  = {During the last years Urban Green Infrastructure (UGI) has evolved as a research focus across Europe. UGI can be understood as a multifunctional network of different urban green spaces and elements contributing to urban benefits. Urban agriculture has gained increasing research interest in this context. While a strong focus has been made on functions and benefits of small scale activities, the question is still open, whether these findings can be up-scaled and transferred to the farmland scale. Furthermore, multifunctionality of urban and peri-urban agriculture is rarely being considered in the landscape context. This research aims to address these gaps and harnesses the question if agricultural landscapes - which in many European metropolitan regions provide significant spatial potential - can contribute to UGI as multifunctional green spaces. This work considers multifunctionality qualitatively based on stakeholder opinion, using a participatory research approach. This study provides new insights in peri-urban farmland potentials for UGI development, resulting into a strategy framework. Furthermore, it reflects on the role of the stakeholder involvement for `multifunctionality planning´. It suggests that it helps to define meaningful bundles of intertwined functions that interact on different scales, helping to deal with non-linearity of multiple functions and to better manage them simultaneously.},
  language  = {en}
}
@misc{ClassKohlerKrawietz2018,
  author    = {Class, Fabian and Kohler, Ulrich and Krawietz, Marian},
  title     = {The Potsdam Grievance Statistics File},
  series = {Historical Methods: A Journal of Quantitative and Interdisciplinary History},
  journal   = {Historical Methods: A Journal of Quantitative and Interdisciplinary History},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-412843},
  pages     = {24},
  year      = {2018},
  abstract  = {The newly collected "Potsdam Grievance Statistics File" (PGSF) holds data on the number and topics of grievances ("Eingaben") that were addressed to local authorities of the German Democratic Republic (GDR) in the years 1970 to 1989. The PGSF allows quantitative analyses on topics such as participation, quality of life, and value change in the German Democratic Republic. This paper introduces the concepts of the data set and discusses the validity of its contents.},
  language  = {en}
}