American Psychological Association 13
Institution of Civil Engineers (Great Britain) 10
Софийский университет "Св. Климент Охридски" 9
National Research Council Canada 8
Universite de Sofia "St. Kliment Ohridski." 8
Academia Romana 7
Académie Roumaine 7
Romanian Academy 7
Academia Republicii Populare Romine 6
Academia Româna 6
Lithuanian Academy of Sciences 6
Academia Republicii Socialiste Romania 5
American Mathematical Society 5
Uniwersytet Marii Curie-Sklodowskiej 5
American Chemical Society 4
American Institute of Physics 4
Deutsche Akademie der Naturforscher Leopoldina 4
Istituto centrale per il catalogo unico delle biblioteche italiane e per le informazioni bibliografiche 4
Politechnika Wrocławska 4
Armenian General Benevolent Union 3
Biblioteca nazionale centrale di Firenze 3
Bulgarska akademiia na naukite 3
Chemical Society (Great Britain) 3
Estonian Academy of Sciences 3
Institut Royal des Sciences Naturelles de Belgique 3
Magyar Tudomanyos Akademia 3
Missouri Botanical Garden 3
National Academy of Sciences (U.S.) 3
Optical Society of America 3
Polish Academy of Sciences 3
Slovenska akademija znanosti in umetnosti. Razred za filoloske in literarne vede 3
Uniwersytet Marii Curie-Skodowskiej 3
Academia de Stiinte Medicale 2
Acoustical Society of America 2
American Academy of Arts and Sciences 2
American Astronomical Society 2
American Institute of Biological Sciences 2
American Psychological Society 2
Association of Art Historians (Great Britain) 2
Atomic Scientists of Chicago 2
Avrasya Stratejik Araştırmalar Merkezi (Turkey) 2
Bulgarian Academy of Sciences 2
Bŭlgarska akademii͡a na naukite 2
California State University 2
Cambridge Philosophical Society 2
Chemical Society (Great Britain). Faraday Division 2
Civico gabinetto numismatico di Milano 2
Comité de patronage"La Voix de l'Arménie" 2
Deutsche Akademie der Naturforscher 2
Deutsche Bunsen-Gesellschaft fur Physikalische Chemie 2
Drustvo matematikov, fizikov in astronomov Slovenije 2
Food and Agriculture Organization of the United Nations 2
Freshwater Biological Association 2
Hershenson, Herbert M. 2
Hrvatska akademija znanosti i umjetnosti. Zavod za povijesne znanosti u Dubrovniku 2
Institute of Mathematics and Informatics 2
Institute of Radiophysics and Electronics NAS RA 2
International Federation of Library Associations 2
Masarykova univerzita v Brne 2
Milan (Italy). Museo archeologico 2
Nagoya University 2
National Academy of Engineering 2
Natural History Museum and Institute, Chiba 2
Naturhistorisches Museum (Austria) 2
Nihon Gakushiin 2
Politechnika Warszawska 2
Poznanskie Towarzystwo Przyjaciol Nauk 2
Royal Anthropological Institute of Great Britain and Ireland 2
Royal Society of Chemistry (Great Britain) 2
Royal Society of Chemistry (Great Britain). Faraday Division 2
Savigny-Stiftung 2
Senckenbergische Naturforschende Gesellschaft 2
Societas Linguistica Europaea 2
Society for Research in Child Development 2
Sodalizio glottologico milanese 2
Suomalainen Tiedeakatemia 2
Unione matematica italiana 2
Universitatea "Babes-Bolyai" 2
Universitatea Tehnica de Constructii Bucuresti 2
University of California, Berkeley School of Law 2
Universität Leipzig 2
Univerzita Karlova 2
Vilnius University 2
Българска академия на науките 2
Софийский университет "Св. Климент Охридски" = Universite de Sofia "St. Kliment Ohridski." 2
"Noravank" gitakrtakan himnadram 1
AIM, Inc. (Glendale, Calif.) 1
Academia Române 1
Academia Românâ 1
Academia Scientiarum Fennica 1
Academia de Stiinte a Republicii Moldova. Institutul de Matematica si Informatica 1
Academia de stiinte medicale 1
Academie Imperiale des Sciences de St. Petersbourg 1
Academie des sciences, arts et belles-lettres de Dijon 1
Academie des sciences, inscriptions et belles-lettres de Toulouse 1
Academy of Sciences Malaysia 1
Academy of Sciences of Moldova. Institute of Chemistry. State of Moldova 1
Academy of Sciences of Moldova.,Institute of Mathematics and Computer Science 1
Academy of Sciences of the Czech Republic Mathematical institute 1
Academy of Sciences of the Republic of Moldova. Physical Society of Moldova 1