M. Grapendaal

A world of opportunities: life-style and economic behaviour of heroin addicts in Amsterdam.

H. Nelen, M. Grapendaal, E. Leuw, 1995 .

Cutting their coat according to their cloth: economic behavior of Amsterdam opiate users.

M. Grapendaal, 1992, The International journal of the addictions.

Drug Policies and Harms: A Conceptual Framework

P. Reuter, P. Ebener, Douglas Longshore, 1998, European Addiction Research.