Knaak, Roland MPI for Intellectual Property and Competition Law, Max Planck Society;
Kur, Annette MPI for Intellectual Property and Competition Law, Max Planck Society;
https://op.europa.eu/en/publication-detail/-/publication/5f878564-9b8d-4624-ba68-72531215967e# (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.