Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
1,660
Unknown
440
Arctic Data Center (via DataONE)
400
Copernicus Publications: E-Journals
268
Directory of Open Access Journals: DOAJ Articles
264
PANGAEA - Data Publisher for Earth & Environmental Science
245
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
216
LeibnizOpen (The Leibniz Association)
174
University of Copenhagen: Research
172
Université de Nantes: HAL-UNIV-NANTES
161
BORIS (Bern Open Repository and Information System, University of Bern)
157
Niedersächsisches Online-Archiv NOA
151
Natural Environment Research Council: NERC Open Research Archive
84
Université Grenoble Alpes: HAL
68
National Institute of Polar Research Repository, Japan
60
University of California: eScholarship
60
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
58
PubMed Central (PMC)
57
EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne)
49
Lund University Publications (LUP)
48
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
39
Cambridge University Press
35
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences)
35
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
34
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
33
University of New Hampshire: Scholars Repository
33
University of St Andrews: Research Portal
33
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
32
Institut national des sciences de l'Univers: HAL-INSU
31
Utrecht University Repository
29
Apollo - University of Cambridge Repository
28
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca)
28
ScienceDirect (Elsevier - via Crossref)
27
University College London: UCL Discovery
27
University of Cambridge, Department of Earth Sciences: ESC Publications
25
Springer Nature (via Crossref)
24
Australian National University: ANU Digital Collections
23
Digital.CSIC (Spanish National Research Council)
23
Aarhus University: Research
22
Wiley Online Library
22
University of Bergen: Bergen Open Research Archive (BORA-UiB)
21
Max Planck Society: MPG.PuRe
20
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
20
ArXiv.org (Cornell University Library)
17
University of Glasgow: Enlighten - Publications
17
Archives ouvertes de Paris-Saclay
16
Columbia University: Academic Commons
16
NASA Technical Reports Server (NTRS)
16
University of Groningen research database
16
University of Southampton: e-Prints Soton
16
more ...