Albert Ludwig University Freiburg, Germany
American University, Washington D.C., USA
Ateneo de Manila University, The Philippines
Charles Darwin University, Australia
Christian-Albrechts-Universität zu Kiel, Germany
Czech University of Life Sciences, Czech Republic
Eotvos Lorand University (ELTE), Hungary
Hawaii Pacific University, USA
James Cook University, Australia
James Cook University, Singapore
Lincoln University, New Zealand
San Diego State University, USA
Technische Universität Dortmund, Germany
Tennessee Technical University, USA
Universidad Complutense de Madrid, Spain
Universidad de Costa Rica, Costa Rica
Universidad Loyola Andalucia, Spain
Universidad San Ignacio de Loyola (USIL), Peru
Università degli Studi di Siena, Italia
Université de Picardie Jules Verne, France
University of Alaska Fairbanks, USA
University of British Columbia: Okanagan Campus, Canada
University of British Columbia: Vancouver Campus, Canada
University of California - Davis, USA
University of California - San Diego, USA
University of Iceland, Iceland
University of Nebraska-Lincoln, USA