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World Federation of Scientific Workers (1946-1994)(36)
Pugwash Conference on Science and World Affairs. Council(27)
Pugwash Conference on Science and World Affairs (1957-)(25)
Pugwash Conference on Science and World Affairs (15. : 1966 : Addis Abeba) (1966-)(21)
Pugwash Conference on Science and World Affairs. Continuing Committee(19)
Zentral- und Landesbibliothek Berlin (701)