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- American Society for Testing and Materials (105)
- American Mathematical Society (90)
- Institute of Electrical and Electronics Engineers (85)
- North Atlantic Treaty Organization. Scientific Affairs Division (59)
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- American Institute of Physics (49)
- Institution of Electrical Engineers (46)
- IEEE International Conference on Acoustics, Speech, and Signal Processing (45)
- American Chemical Society (43)
- IEEE Signal Processing Society (42)
- Società italiana di fisica (39)
- Arnolʹd, Vladimir Igorevich, 1937- (38)
- Darwin, Charles, 1809-1882 (36)
- National Science Foundation (U.S.) (34)
- Royal Society of Chemistry (Great Britain) (34)
- Incorporated Council of Law Reporting for England and Wales (33)
- Minnesota Geological Survey (33)
- American Concrete Institute (32)
- C.I.M.E. Summer School (32)
- Chemical Society (Great Britain) (32)
- Hermann, Robert, 1931- (32)
- International Union of Pure and Applied Physics (32)
- Centro internazionale matematico estivo. Session (31)
- Lang, Serge, 1927- (31)
- 日本数学会 (31)
- École d'été de probabilités de Saint-Flour (30)
- International Geological Congress (29)
- Sigel, Helmut (29)
- Feynman, Richard Phillips, 1918-1988 (28)
- Flügge, Siegfried (28)
- Organisation for Economic Co-operation and Development (28)
- American Society of Mechanical Engineers (27)
- London Mathematical Society (27)
- Krantz, Steven G. (Steven George), 1951- (26)
- NATO Advanced Study Institute (26)
- Hellwege, A. M. (25)
- Society for Industrial and Applied Mathematics (25)
- Séminaire de probabilités (25)
- Timoshenko, Stephen P., 1878-1972 (25)
- West Publishing Company (25)
- 国立極地研究所 (25)
- American Psychological Association (24)
- Atkins, P. W. (Peter William), 1940- (24)
- Höhler, G. (24)
- Yau, Shing Tung, 1949- (24)
- 軽金属奨学会 (24)
- American Geophysical Union (23)
- American Society for Metals. Handbook Committee (23)
- Centro internazionale matematico estivo (23)
- Institution of Civil Engineers (Great Britain) (23)
- Marsden, Jerrold E., 1942- (23)
- Simon, Barry (23)
- Unesco (23)
- Yor, Marc, 1950- (23)
- 文部省 (23)
- American Society of Civil Engineers (22)
- Fomenko, Anatoliĭ Timofeevich (22)
- Hellwege, K. H. (22)
- Knuth, Donald Ervin, 1938- (22)
- Zumthor, Peter (22)
- ACOL (Project) (21)
- American Institute of Chemical Engineers (21)
- Conference Board of the Mathematical Sciences (21)
- Friend, J. Newton (John Newton) (21)
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- International Union of Crystallography (21)
- Katritzky, Alan R. (21)
- World Engineering Congress (21)
- American Medical Association (20)
- Atiyah, Michael Francis, 1929- (20)
- Chern, Shiing-Shen, 1911-2004 (20)
- Institute of Mathematical Statistics (20)
- Institute of Physics (Great Britain) (20)
- International School of Physics "Enrico Fermi" (20)
- Kendall, Maurice G. (Maurice George), 1907-1983 (20)
- Shafarevich, Igorʹ Rostislavovich, 1923- (20)
- Stroock, Daniel W. (20)
- 日本学術会議 (20)
- British Broadcasting Corporation (19)
- Gelʹfand, Izrailʹ Moiseevich, 1913- (19)
- Haykin, Simon S., 1931- (19)
- Landau, Lev Davidovich, 1908-1968 (19)
- Wilkinson, Geoffrey, Sir, 1921- (19)
- World Health Organization (19)
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- American Chemical Society. Meeting (18)
- American Physical Society (18)
- Cohen, I. Bernard, 1914- (18)
- International Congress on the History of Sciences (18)
- Kittel, Charles, 1916- (18)
- Materials Research Society (18)
- Needham, Joseph (Noel Joseph Terence Montgomery), 1900-1995 (18)
- Newton, Isaac, Sir, 1642-1727 (18)
- Sigel, Astrid (18)
- U.S. Atomic Energy Commission (18)
- 日本物理学会 (18)
- Albeverio, Sergio, 1939- (17)
- American Society for Testing Materials (17)
- Bellman, Richard Ernest, 1920-1984 (17)
- British Combinatorial Conference (17)