2015 Visiting Professor: Federal University Vladivostok, Russia 2009 Visiting Professor: University of Nancy, France (1 month) 2006 Visiting Professor: University of Hong Kong, China (2 weeks), Swinburne University of Technology, Australia (2 weeks) 2002 Visiting Professor: University of Alaska, Fairbanks, USA (2 weeks), University of Alberta, Edmonton, Canada (2 weeks) 1996 Visiting Professor: University of Hull, UK (2 weeks) 1994, 1996 Visiting Professor: University of Colorado, Boulder, USA (4 weeks x 2) 1994 DAAD Scholarship in Germany: University of Duisburg, Duisburg (1 month); University of Wuppertal, Wuppertal (1 month) 1992 Visiting Professor: University of Quebec, Hull, Canada 1991 IREX Scholarship in the USA: Virginia University, Charlottesville (1 month); Colorado University, Boulder (4 months) 1983-1986 Postdoctoral position: Technical University of Kiev and the Institute of Cybernetics, Ukrainian Academy of Sciences, Kiev, Ukraine