@incollection{:/content/books/9789210556538c005, author = "United Nations Office on Drugs and Crime", title = "The contemporary drug problem: Characteristics, patterns and driving factors", booktitle = "World Drug Report 2012", publisher = "United Nations", year = "2012", pages = "59-98", url = "https://www.un-ilibrary.org/content/books/9789210556538c005" }