Content Provider
Natural Environment Research Council: NERC Open Research Archive
1,190
Directory of Open Access Journals: DOAJ Articles
819
ScienceDirect (Elsevier - via Crossref)
301
Springer Nature (via Crossref)
297
DataCite Metadata Store (German National Library of Science and Technology)
279
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
275
Unknown
210
Digital.CSIC (Spanish National Research Council)
203
Cambridge University Press
192
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
159
Niedersächsisches Online-Archiv NOA
127
University of Southampton: e-Prints Soton
103
Université de Nantes: HAL-UNIV-NANTES
98
ScienceDirect (Elsevier)
97
Wiley Online Library
94
eCite UTAS (University of Tasmania)
89
Vernadsky National Library of Ukraine: DSpace
88
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
87
University of California: eScholarship
72
Utrecht University Repository
67
Institut national des sciences de l'Univers: HAL-INSU
56
Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual)
54
Australian National University: ANU Digital Collections
53
University of East Anglia: UEA Digital Repository
52
University of Tasmania: UTas ePrints
51
Ghent University Academic Bibliography
46
Universidad de Chile: Repositorio académico
46
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
45
White Rose Research Online (Universities of Leeds, Sheffield & York)
44
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
44
Durham University: Durham Research Online
43
Northumbria University, Newcastle: Northumbria Research Link (NRL)
42
University of Glasgow: Enlighten - Publications
42
Apollo - University of Cambridge Repository
36
University College London: UCL Discovery
35
Magnolia press
33
University of Bristol: Bristol Research
29
University of South Florida St. Petersburg: Digital USFSP
28
Arctic Portal Library
27
Digital Commons University of South Florida (USF)
27
NIOZ Repository (Royal Netherlands Institute for Sea Research)
27
University of St Andrews: Research Portal
27
Old Dominion University: ODU Digital Commons
26
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
25
RePEc (Research Papers in Economics)
25
Instituto Español de Oceanografía: e-IEO
24
Masaryk University Journals
24
ORA - Oxford University Research Archive
24
Universidade de Lisboa: repositório.UL
24
University of Groningen research database
24
more ...