Deutsche Atom-Kommission. Arbeitskreis Kernphysik (1956-)(3)
Deutscher Forschungsrat (1949-1951)(1)
Pergamon Press Limited (1948-)(1)
Philosophy of Science Association(1)
United States. Educational Commission in the Federal Republic of Germany (Bad Godesberg)(1)
University of Illinois (1885-1982)(1)
Weltföderalisten Deutschlands e.V. (1949-)(1)
World Committee for a World Constitutional Convention (1958-)(1)