STETINA, Birgit U., Reinhold JAGSCH, Cornelia SCHRAMEL, Tamara Lederman MAMAN and Ilse KRYSPIN-EXNER, 2008. Exploring Hidden Populations: Recreational Drug Users. Cyberpsychology: Journal of Psychosocial Research on Cyberspace [online]. 2(1), Article 4. Available at: https://cyberpsychology.eu/article/view/4208