%0 Book %A King, Leslie A. %I EMCDDA, European Monitoring Centre for Drugs and Drug Addiction %D 2004 %C Lisbon %G English %B EMCDDA insights series %@ 9291681849 %T An overview of cannabis potency in Europe %J EMCDDA insights %U http://digitale-objekte.hbz-nrw.de/webclient/DeliveryManager?pid=1605013&custom_att_2=simple_viewer