RT Article T1 Comparative analyses of beliefs, leisure contexts, and substance use in West Berlin and Warsaw JF Adolescence in context SP 176 OP 198 A1 Silbereisen, Rainer K. 1944- A2 Noack, Petter A2 Schönpflug, Ute 1940- LA English YR 1994 UL https://krimdok.uni-tuebingen.de/Record/1525842692 SN 354094060X K1 Jugendliche K1 Rauchen K1 Alkoholkonsum