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.