Professor of port & maritime economics, UGhent / University of Antwerp / Antwerp Maritime …

Professor, Dept. of Maritime Business Administration, Texas A&M University - Galveston

Professor of Transport, TransportLab, School of Civil Engineering, University of Sydney

Professor Emeritus, Geography, The Ohio State University

Universidad Complutense de Madrid

Université catholique de Louvain

University of Toronto

Centre National de la Recherche Scientifique (CNRS)

Professor, School of the Environment, The University of Queensland

postdoctoral research fellow, Ghent University