RT Article T1 Evaluating drug abuse intervention: special issue JF Evaluation and program planning VO 17 IS 4 A1 Dennis, Michael L. A1 Wechsberg, Wendee M. LA English YR 1994 UL https://krimdok.uni-tuebingen.de/Record/1639417095 K1 Drogenbekämpfung K1 Drogentherapie K1 Evaluation