Comparative analysis of research into illicit drugs in the European Union : full report / Gerhard Bühringer ... [et al.]. [Brussels] : Directorate-General for Justice, Freedom and Security of the European Commission, [2009]. 84 s. ISBN 978-92-79-13383-1   [1, z toho volných 1]

Concern for Europe's tomorrow : Health and the environment in the WHO European region. Stuttgart : Wissenschaftliche Verlagsgesellschaft, 1995. 537 s.ISBN 3-8047-1406-4   [2, z toho volných 2]