Author
SpringerLink (Online service)
49,670
ebrary, Inc
13,991
ProQuest (Firm)
12,392
Geological Survey (U.S.)
8,515
United States National Bureau of Standards
8,176
De Gruyter
5,190
Edgar Fahs Smith Memorial Collection (University of Pennsylvania)
4,507
IEEE Xplore (Online service)
4,098
IEEE Computer Society
4,088
Society of Photo-optical Instrumentation Engineers
3,733
William B. Provine Collection on Evolution and Genetics
3,620
Institute of Electrical and Electronics Engineers
3,599
History of Science Collection (Brown University)
3,374
National Institute of Standards and Technology (U.S.)
3,139
History of Medicine Collection (David M. Rubenstein Rare Book & Manuscript Library)
3,117
Association for Computing Machinery
2,364
National Science Foundation (U.S.)
2,320
World Scientific (Firm)
2,213
EBSCOhost
1,890
United States National Aeronautics and Space Administration
1,752
Smithsonian Institution
1,735
North Atlantic Treaty Organization Scientific Affairs Division
1,710
NetLibrary, Inc
1,676
Edward Potts Cheyney Memorial Fund
1,650
Alumni and Friends Memorial Book Fund
1,548
ACM Digital Library
1,503
Cambridge University Press
1,439
Darwin, Charles, 1809-1882
1,391
Wiley InterScience (Online service)
1,365
Massachusetts Institute of Technology Center for Theoretical Physics
1,331
SPIE (Society)
1,276
ProQuest ebook central
1,241
Society of Photo-Optical Instrumentation Engineers
1,208
ScienceDirect (Online service)
1,164
Rosengarten Family Fund
1,159
Rand Corporation
1,117
Taylor & Francis
1,115
American Institute of Physics
1,112
Royal Society of Chemistry (Great Britain)
1,100
International Business Machines Corporation International Technical Support Organization
1,099
ACM Special Interest Group on Programming Languages
1,084
Lownes Science Collection (Brown University)
1,079
New York Academy of Sciences
1,074
American Mathematical Society
1,057
Royal College of Physicians of London
1,041
United States Weather Bureau
1,038
American Chemical Society Meeting
1,001
David E. Pingree Collection (Brown University)
992
U.S. Coast and Geodetic Survey
987
Centre national de la recherche scientifique (France)
940
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