Bat-Sheva Seminar (1968 : Ḥêfā) (1968-)(1)
Benedetti Michelangeli, Arturo (1920-1995)(1)
European Peace Research Conference (4, 1967, Den Haag)(1)
Harper and Row Publishers Inc. (New York, NY)(1)
Hermann-Luchterhand-Verlag (1924-)(1)
Hirsch, Gottwalt Christian (1888-1972)(1)
International Botanical Congress (12. : 1975 : Leningrad) (1975-)(1)
International Conference Science and Society (4. : 1971 : Herceg-Novi)(1)
International Conference on Cosmic Rays (12. : 1971 : Hobart, Tasmania) (1971-)(1)
International Conference on Elementary Particles (1967 : Heidelberg) (1967-)(1)
International Seaweed Symposium (7. : 1971 : Sapporo) (1971-)(1)
International Symposium on Contemporary Physics (1968 : Triest) (1968-)(1)
Internationaler Leibniz-Kongress (2. : 1972 : Hannover) (1972-)(1)