From 1966-1973 he was a manager of the fast growing Physics Department of the National Defense Organization of TNO.
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He is on the Advisory Board of the International Institute for General Systems Studies.
Gerrit Smith | Gerrit P. Judd | Gerrit Schotte | Gerrit Dou | Gerrit Rietveld Academie | Gerrit Wolsink | Gerrit Cole | Gerrit Badenhorst | Gerrit Wartenaar | Gerrit Voorting | Gerrit van Uylenburgh | Gerrit Thomas | Gerrit Noordzij Prize | Gerrit J. Diekema | Gerrit Jan Meulenbeld | Gerrit Jan Heijn | Gerrit Henry | Gerrit de Hooch |