Author
ScienceDirect (Online service)
685
LINK (Online service)
618
Wiley InterScience (Online service)
273
American Institute of Physics
252
JSTOR (Organization)
197
Consultants Bureau
137
Institute of Physics (Great Britain)
137
Association for Computing Machinery
133
American Chemical Society
122
Chemical Society (Great Britain)
112
Royal Society of Chemistry (Great Britain)
111
Institute of Electrical and Electronics Engineers
110
Hindawi Publishing Corporation
109
BioOne (Organization)
103
IDEAL (Project)
102
National Climatic Center
89
National Climatic Data Center (U.S.)
88
American Geophysical Union
82
Elsevier Science (Firm)
80
American Physical Society
75
IEEE Computer Society
73
Directory of Open Access Journals
68
United States. Weather Bureau
67
BioMed Central Ltd
65
United States. Environmental Data Service
65
Taylor & Francis Online
63
American Mathematical Society
62
Centre national de la recherche scientifique (France)
60
Royal Society (Great Britain)
59
Society for Industrial and Applied Mathematics
59
Akademii︠a︡ nauk SSSR
53
Académie des sciences (France)
52
American Society for Microbiology
51
IEEE Xplore (Online service)
50
Optical Society of America
49
Consultants Bureau Enterprises
48
Gesellschaft Deutscher Chemiker
44
Zhongguo ke xue yuan
44
HighWire Press
42
Centre national de la recherche scientifique (France). Centre de documentation
41
Rossiĭskai︠a︡ akademii︠a︡ nauk
41
Indian Academy of Sciences
40
National Research Council of Canada
40
American Physiological Society (1887- )
39
Wistar Institute of Anatomy and Biology
39
Akademii͡a nauk SSSR
37
Institute of Physics and the Physical Society
37
Magyar Tudományos Akadémia
36
United States. National Bureau of Standards
36
EBSCO Publishing (Firm)
35
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