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Volkmann, Tatiana & Borstel, Dierk 2010. Regional study "Right-wing extremism in Eastern Germany - Democracy and right-wing extremism in rural areas" BBE Newsletter 21, . https://www.b-b-e.de/fileadmin/Redaktion/05_Newsletter/01_BBE_Newsletter/bis_2017/2010/nl21_volkmann_borstel.pdf.