RT Article T1 Open drug scenes: a cross-national comparison of concepts and urban strategies JF European addiction research VO 1 IS 3 SP 128 OP 138 A1 Bless, Ruud A1 Korf, Dirk J. 1952- A1 Freeman, M. A2 Korf, Dirk J. 1952- A2 Freeman, M. LA English YR 1995 UL https://krimdok.uni-tuebingen.de/Record/1639389474 K1 Drogenpolitik K1 Europa