Knaak, Roland MPI for Intellectual Property and Competition Law, Max Planck Society;
Kur, Annette MPI for Intellectual Property and Competition Law, Max Planck Society;
http://ec.europa.eu/internal_market/indprop/docs/tm/20110308_allensbach-study_en.pdf (Preprint)
Knaak, R., & Kur, A. (2011). Study on the Overall Functioning of the European Trade Mark System - Report for the European Commission - presented by Max Planck Institute for Intellectual Property and Competition Law Munich.