RT Article T1 An 8-year-study of multiple influences on drug use and drug use consequences JF Journal of personality and social psychology VO 53 IS 6 SP 1094 OP 1105 A1 Stein, J. A. A2 Newcomb, M. D. A2 Bentler, Peter M. LA English YR 1987 UL https://krimdok.uni-tuebingen.de/Record/164123251X K1 Suchtmittelmissbrauch K1 Verlaufsstudien