Professor of Physics, University of Chicago

JR Macdonald Laboratory, Department of Physics, Kansas State University

Max Born Institute and Humboldt Universität zu Berlin

University of Ottawa

Faculty of Science, University of Sarajevo

Professor Emeritus, Physics Dept., University of Crete, Greece

University of Massachusetts Lowell

Macedonian Academy of Sciences and Arts, Skopje, Macedonia

Division of Applied and Computational Mathematics, NIST

Istituto Nazionale di Ottica, SS di Pisa, CNR