Alvarez, Javier and Bello, Pierre-Yves and Faasen, Imar and Feijão, Fernanda and Karachaliou, Krystallia and Kontogeorgiou, Katerina and Lagerqvist, Jenny and Mickelsson, Kajsa and Siamou, Ioanna and Simon, Roland and Vaissade, Laure (2004) Emerging drug phenomena: a European manual on the early information function for emerging drug phenomena. Paris: Observatoire Français des Drogues et des Toxicomanies.

Montanari, Linda and Serafini, Marco and Maffli, Etienne and Busch, Martin and Kontogeorgiou, Katerina and Kuijpers, Wil and Ouwehand, Anton and Pouloudi, Maria and Simon, Roland and Spyropoulou, Maria and Studnickova, Bela and Gyarmathy, V. Anna (2010) Gender and regional differences in client characteristics among substance abuse treatment clients in the Europe. Drugs: Education Prevention and Policy , 18 , (1) , pp. 24-31.