International School of Physics Enrico Fermi(2)
Deutsches Archäologisches Institut, Archiv der Zentrale(1)
Engels, Friedrich (1820-1895)(1)
Geppert, Harald (1902-1945)(1)
Institut für Pädagogik Hamburg(1)
International Conference on Cosmic Rays (5. : 1957 : Varenna) (1957-)(1)
International Conference on High Energy Accelerators and Instrumentation (1959 : Genf) (1959-)(1)
International Economic History Congress (9. : 1986 : Bern) (1986-)(1)
International Union of Pure and Applied Physics (1922-)(1)