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Pugwash Conference on Science and World Affairs (22, 1972, Oxford)(18)
Pugwash Conference on Science and World Affairs (26. : 1976 : Mühlhausen/Thüringen) (1976-)(10)
Pugwash Conference on Science and World Affairs (42. : 1992 : Berlin) (1992-)(8)
Stockholm International Peace Research Institute (1969-)(8)
Zentral- und Landesbibliothek Berlin (493)