Content Provider
David Rumsey Historical Map Collection (Cartography Associates)
6,586
Gallica - bibliothèque numérique de la Bibliothèque nationale de France (BnF)
1,171
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
509
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
467
NGU Open Archive (Geological Survey of Norway)
343
The Portal to Texas History (University of North Texas)
342
The Library of Congress: American Memory
227
e-rara.ch (ETH Zürich)
95
Doria (National Library of Finland)
94
JYX - Jyväskylä University Digital Archive
63
Harvard University: Harvard Collections
49
York University Digital Library
44
APS Digital Library (American Philosophical Society)
34
University of Florida: Digital Library Center
32
Arca (BC's Digital Treasures)
31
Hathi Trust Digital Library
29
UNBC's Digital Institutional Repository (University of Northern British Columbia)
21
USRA Houston Repository (Universities Space Research Association)
20
Utrecht University Repository
18
DataCite Metadata Store (German National Library of Science and Technology)
16
OhioLINK: Ohio Digital Resource Commons (DRC)
16
Washington State University: WSU Libraries Digital Collections
15
Minnesota Reflections (Minnesota Digital Library - MDL)
13
University of Minnesota Digital Conservancy
12
Colecciones digitales - Biblioteca Virtual del Banco de la República
10
Digital Library of Wielkopolska
9
Biblioteca Virtual de Defensa (BVD - Ministerio de Defensa de España)
8
Monash Collections Online
8
The University of Melbourne: Digitised Collections
8
Unknown
8
Silesian Digital Library
7
Brock University Digital Repository
6
Great Barrier Reef Marine Park Authority: eLibrary
6
Texas A&M University - Corpus Christi: DSpace Repository
6
University of North Texas: UNT Digital Library
5
Digital Repository of the University of Hawaii at Manoa
4
Digital.CSIC (Spanish National Research Council)
3
RUcore - Rutgers University Community Repository
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2
Ball State University: Cardinal Scholar
2
Biblioteca Virtual del Patrimonio Bibliográfico
2
Borealis
2
George Mason University: MARS
2
Iowa State University Library Digital Collections
2
Johns Hopkins University, Baltimore: JScholarship
2
MCS University Digital Library
2
MédiHAL
2
Universidade Federal de São Paulo (UNIFESP): Repositório Institucional
2
University of Wyoming: Digital Repository
2
University of Wyoming: UW Libraries Digital Repository (Digital UW)
2
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