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International Federation of Automatic Control 308 COSPAR Plenary Meeting 289 COSPAR 180 International Union of Pure and Applied Chemistry 102 International Commission on Radiological Protection 86 Landau, L. D (Lev Davidovich), 1908-1968 65 International Association on Water Pollution Research and Control 63 Commission of the European Communities 60 Lifshit︠s︡, E. M (Evgeniĭ Mikhaĭlovich) 51 Federation of European Biochemical Societies 49 Institution of Chemical Engineers (Great Britain) 47 International Association on Water Pollution Research 47 Pergamon Institute 45 International Union of Pharmacology 44 Jenkins, S. H (Samuel Harry) 43 Dummer, G. W. A (Geoffrey William Arnold) 42 North Atlantic Treaty Organization Advisory Group for Aeronautical Research and Development 40 International Congress of Physiological Sciences Budapest, Hungary 39 International Federation for Information Processing 39 International Astronomical Union 35 International Congress of Pharmacology 35 International Union of Pure and Applied Chemistry Organic Chemistry Division 34 Schering AG 34 International Institute for Applied Systems Analysis 33 Lifshit͡s, E. M (Evgeniĭ Mikhaĭlovich) 33 United Nations Institute for Training and Research 33 International Commission on Radiological Protection Committee 4 32 United Nations Environment Programme 32 International Institute of Refrigeration 31 Messel, H (Harry), 1922- 30 see all ...

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Great Britain 537 United States 291 Developing countries 213 Europe 169 Soviet Union 131 China 99 Australia 91 England 79 France 59 Africa 40 Russia 38 Germany 34 Sweden 34 Moon 32 United Kingdom 31 Canada 29 Solar system 26 India 25 Japan 25 Europe, Eastern 23 Latin America 23 Israel 21 London 20 Sun 19 Germany (West) 18 Mars (Planet) 18 Poland 18 Middle East 17 Asia 16 Earth (Planet) 16 see all ...