Hermann-Luchterhand-Verlag (1924-)(2)
Einstein, Albert (1879-1955)(1)
European Peace Research Conference (4, 1967, Den Haag)(1)
Kuczynski, Jürgen (1904-1997)(1)
Kępiński, Antoni (1918-1972)(1)
North American Peace Research Conference (5, 1967, Cambridge)(1)
Peace Research Conference (1967, Den Haag)(1)
Pugwash Conference on Science and World Affairs (17. : 1967 : Ronneby) (1967-)(1)
Regional Science Conference (1967)(1)