InstitutionZentralinstitut für Jugendforschung (ZIJ) (2)AuthorGeier, Wolfgang (1)Ulbrich, Hans-Joachim (1)Date Issued1976 (1)1970 (1)Document Typeresearch report (1)working paper (1)KeywordDDR (2)German Democratic Republic (GDR) (2)socialism (2)Sozialismus (2)
tourism (2)
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