retired
(KIST Europe, Saarbrücken, Germany 2009-2022)
(FRIAS, Freiburg, Germany 2009-2010)
(ISAS Dortmund, Germany 2003-2008)
(Imperial College London, UK 1995-2004)
(Ciba-Geigy, Basel, Switzerland 1988-1995)
(Hitachi, Tokyo, Japan 1987)
(ETH Zürich, Switzerland 1983-86)

Inaugural Lecture, Imperial College, London 1997 (video)
https://www.youtube.com/watch?v=YE50HG22rvg