Article

Wiessing, Lucas and Augustin, R. and Uhl, Alfred and Kummler, P. and Kraus, L. and Frischer, Martin (2003) Estimating prevalence of problem drug use at national level in countries of the European Union and Norway. Addiction, 98 (4). pp. 471-485.

Report

Hartnoll, Richard and Frischer, Martin and Wiessing, Lucas and Bello, Pierre-Yves and Kraus, L. and McKeganey, Neil and D'Ippoliti, Daniela and Domingo-Salvany, Antonia and Smit, Filip and Hay, Gordon (1999) Methodological guidelines to estimate the prevalence of problem drug use on the local level. European Monitoring Centre for Drugs and Drug Addiction, Lisbon .