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, About the authors

, Joachim Schopfel is the corresponding author and can be contacted at: joachim.schopfel@univ-lille3.fr Behrooz Rasuli is a PhD Candidate in library and information science at IranDoc and Research Assistant at the Information Studies Laboratory (InfoLab) at the University of Tehran. Currently, he is working on his dissertation on designing a business model for providing digital information resources (the case of ETDs). He is interested in scientometrics, business models, ETDs, digital libraries and copyright. His homepage can be accessed through irandoc.ac.ir/rasuli/rasuli.html. For instructions on how to order reprints of this article, Joachim Schopfel is a Senior Lecturer in information and document sciences at the University of Lille and Researcher at the GERiiCO laboratory