Author
United States Exploring Expedition
59
International Geographical Congress
57
International Geological Congress
50
Institute of Electrical and Electronics Engineers
46
Association for Computing Machinery Special Interest Group on Spatial Information
44
SPIE (Society)
44
IEEE Geoscience and Remote Sensing Society
42
Society of Photo-optical Instrumentation Engineers
36
Association for Computing Machinery
35
International Geographical Union
35
ProQuest (Firm)
34
World Tourism Organization
34
IEEE Xplore (Online service)
32
United States Hydrographic Office
30
Sherman & Smith
29
ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
28
Sovetskai︠a︡ antarkticheskai︠a︡ ėkspedit︠s︡ii︠a︡
28
Unesco
26
Wyman, R. H (Robert Harris), 1822-1882
25
National Ocean Survey
22
Arkticheskiĭ i antarkticheskiĭ nauchno-issledovatelʹskiĭ institut (Saint Petersburg, Russia)
20
Association for Computing Machinery Special Interest Group on Information Retrieval
19
Purdue University Laboratory for Applications of Remote Sensing
19
Wilde Americk: Discovery and Exploration of the New World, 1500-1850
17
American Congress on Surveying and Mapping
16
Petroleum Economist Ltd
16
United States National Aeronautics and Space Administration
16
Brebbia, C. A
15
ACM Digital Library
14
American Society for Photogrammetry and Remote Sensing
14
Deutscher Geographentag
14
Morrison, D. B
14
Bush, P
13
Claramunt, Christophe
13
Fuller, K
13
Gerasimov, I. P (Innokentiĭ Petrovich), 1905-1985
13
IEEE Microwave Theory and Techniques Society
13
International Geographical Congress Montréal, Québec
13
International Indian Ocean Expedition
13
National Science Foundation (U.S.)
13
Society of Photo-Optical Instrumentation Engineers
13
Frank, Andrew U
12
Tong, Qingxi, 1935-
12
Li, Ki-Joune
11
Mark, David M
11
Soviet Union Glavnoe upravlenie geodezii i kartografii
11
British Antarctic Expedition
10
Deutsche Atlantische Expedition
10
Environmental Systems Research Institute (Redlands, Calif.)
10
European Space Agency
10
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