InstitutionZentralinstitut für Jugendforschung (ZIJ) (2)AuthorBisky, Lothar (1)Förster, Peter (1)Hennig, Werner (1)Kalina, Georg (1)Mühlhausen, Aribert (1)...view moreDate Issued1969 (1)1967 (1)Document Typeresearch report (2)KeywordDDR (2)Freizeit (2)German Democratic Republic (GDR) (2)leisure time (2)mass media (2)...view moreReviewreviewstatus unknown (2)Publication StatusUnknown (2)