• May 20 - June 20, 1985: Inorganic Chemistry Laboratory, University of Oxford, Oxford (UK), in the group of Prof. Peter Day;
• March 1 - April 30, 1986: Department of Physics and Astronomy, Southern Illinois University at Carbondale, (USA), with Prof. Bruno Gruber;
• September 10-18, 1989: Laser Laboratory of the Birkbeck College, University of London, London (UK) in the group of Prof. Colin D. Flint;
• July 9 - September 10, 1990: Laser Laboratory of the Birkbeck College, University of London, London (UK) in the group of Prof. Colin D. Flint;
• May 21-24, 1991: Dipartimento di Chimica Inorganica, Metallorganica ed Analytica, University of Padova, Padova, (Italy) with Prof. Marco Bettinelli;
• April 3-22, 1993: Physics Department, The American University in Cairo, Cairo (Egypt) with Prof. Salah Arafa;
• March 22 - April 1, 1994: Laser Laboratory of the Birkbeck College, University of London, London (UK) in the group of Prof. Colin D.Flint;
• March 29 - April 5, 1995: Physics Department, The American University in Cairo, Cairo (Egypt) with Prof. Salah Arafa;
• August 15 - 23, 1995: The Royal Institution of Great Britain, London (UK) in the group of Prof. Peter Day;
• April 2 - April 12, 1996: Physics Department, The American University in Cairo, Cairo (Egypt) with Prof. Salah Arafa;
• April 13 - April 23, 1998: Physics Department, The American University in Cairo, Cairo (Egypt) with Prof. Salah Arafa;
• February 23 - March 1, 2002: Laser Laboratory of the Birkbeck College, University of London, London (UK) in the group of Prof. Colin D. Flint;
• April 6 - April 13, 2002: Physics Department, The American University in Cairo, Cairo (Egypt) with Prof. Salah Arafa.

Dr. Karl Gatterer.

Research Group Solid State Spectroscopy and Magnetochemistry in Material Science.