Evenepoel, Tom (2008) Fesat monitoring project. Report on the 15th data collection: changes during the second half of 2007. Brussels: FESAT: The European Foundation of Drug Helplines.

Evenepoel, Tom (2008) Fesat monitoring project. Report on the 16th data collection: changes during the first half of 2008. Brussels: FESAT: The European Foundation of Drug Helplines.