RT Article T1 A behavior profile of polydrug abusers JF Journal of youth and adolescence VO 16 IS 2 SP 115 OP 207 A1 Kennedy, Brian A2 Konstantareas, Mary A2 Homatidis, Soula LA English YR 1987 UL https://krimdok.uni-tuebingen.de/Record/1637146256 K1 Mischkonsum K1 Suchtmittelmissbrauch