Cooperations

• Sh. Ferguson-Miller, Michigan State University, USA
• W. Durham, University of Arkansas, USA
• L. Loew, University of Connecticut, USA
• D. Baurecht, University of Vienna, Austria
• J. Lipkowski, University of Guelph, Canada
• B. Ludwig, University of Frankfurt, Germany
• G. Matthias Ullmann, University of Bayreuth, Germany
• M. Boersch, University of Jena, Germany