International School of Physics Enrico Fermi(2)
International Conference on Cosmic Rays (5. : 1957 : Varenna) (1957-)(1)
International Conference on Gravitation and the Theory of Relativity(1)
International Conference on Theoretical Physics and Biology (2. : 1969 : Versailles) (1969-)(1)
International Conference on the Unity of the Sciences (4. : 1975 : New York, NY) (1975-)(1)
Konferenz Parlament und Wissenschaft (2. : 1964 : Wien) (1964-)(1)
Symposium on Pile Neutron Research in Physics (1960 : Wien) (1960-)(1)