Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
259
University of Lethbridge Digitized Collections
76
North Dakota State University (NDSU): Digital Horizons
60
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences)
16
The University of Utah: J. Willard Marriott Digital Library
16
Unknown
11
Cambridge University Press
10
Digital Collections of Colorado (Colorado State University)
10
Mountain Scholar (Digital Collections of Colorado and Wyoming)
10
University of Cambridge, Department of Earth Sciences: ESC Publications
7
Arctic Data Center (via DataONE)
6
Cambridge University Press (via Crossref)
5
Digital.CSIC (Spanish National Research Council)
5
Hunter Library Digital Collections (Western Carolina University)
5
Ghent University Academic Bibliography
4
University of California: eScholarship
4
Zenodo
4
Canadian Science Publishing (via Crossref)
3
Dryad Digital Repository (Duke University)
3
Durham University: Durham Research Online
3
ESS-DIVE: Deep Insight for Earth Science Data (via DataONE)
3
The University of Maine: DigitalCommons@UMaine
3
DIAL@USL-B (Université Saint-Louis, Bruxelles)
2
Journals@UIC (The University of Illinois at Chicago)
2
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
2
Natural Environment Research Council: NERC Open Research Archive
2
ORA - Oxford University Research Archive
2
PALNI Digital Library Collections (Private Academic Library Network of Indiana)
2
PubMed Central (PMC)
2
Sapienza Università di Roma: CINECA IRIS
2
The Royal Society
2
The University of Adelaide: Digital Library
2
University of Bristol: Bristol Research
2
University of New Brunswick: Centre for Digital Scholarship Journals
2
University of Otago: Research Archive (OUR Archive)
2
University of Washington, Seattle: Digital Collections
2
Uppsala University: Publications (DiVA)
2
Wiley Online Library (via Crossref)
2
Érudit.org (Université Montréal)
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Brigham Young University (BYU): Digital Collections
1
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
1
COS Center for Open Science
1
Comparativ (E-Journal)
1
Czech Academy of Sciences: dKNAV
1
Defense Technical Information Center: DTIC Technical Reports database
1
Directory of Open Access Journals: DOAJ Articles
1
Durham University: Durham e-Theses
1
HAL Lyon 1 (University Claude Bernard Lyon 1)
1
Hrčak - Portal of scientific journals of Croatia
1
more ...