Show 5 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: author="Zhang, Xiaoke" or (type any "bookEditor journalEditor issueEditor" and editor="Zhang, Xia... Add to list Journal Article A1 Modeling the structure and operation of drug supply chains : the case of cocaine and heroin in Italy and Slovenia Jonathan P Caulkins, Emma Disley, Marina Tzvetkova, Mafalda Pardal (UGent) , Hemali Shah and Xiaoke Zhang (2016) INTERNATIONAL JOURNAL OF DRUG POLICY. 31. p.64-73 Add to list Conference Paper C3 The structure and operation of the supply chains for cocaine and heroin in Italy and Slovenia Jonathan Caulkins, Emma Disley, Marina Tzvetkova, Mafalda Pardal (UGent) , Hemali Shah and Xiaoke Zhang (2015) 9th Annual Conference of the ISSDP, Abstracts.