Content Provider
Canadian Science Publishing (via Crossref)
44
University of Calgary Journal Hosting
35
Directory of Open Access Journals: DOAJ Articles
28
DataCite Metadata Store (German National Library of Science and Technology)
24
Cambridge University Press
20
LeibnizOpen (The Leibniz Association)
19
Unknown
19
Canadian Science Publishing
14
ScienceDirect (Elsevier - via Crossref)
12
Wiley Online Library
11
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
10
Informa (via Crossref)
10
Niedersächsisches Online-Archiv NOA
10
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
9
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
8
Springer Nature (via Crossref)
7
Wiley Online Library (via Crossref)
7
University of Cambridge, Department of Earth Sciences: ESC Publications
6
JSTOR (via Crossref)
5
ScienceDirect (Elsevier)
5
University of New Brunswick: Centre for Digital Scholarship Journals
5
Université de Nantes: HAL-UNIV-NANTES
5
Arctic Institute of North America (via Crossref)
4
Biodiversity Heritage Library (BHL)
4
University of California Press (via Crossref)
4
University of California: eScholarship
4
University of Michigan: Deep Blue
4
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
3
Digital.CSIC (Spanish National Research Council)
3
Frontiers (Publisher)
3
Institut national de la recherche scientifique, Québec: Espace INRS
3
Natural Environment Research Council: NERC Open Research Archive
3
University College London: UCL Discovery
3
Aarhus University: Research
2
Apollo - University of Cambridge Repository
2
Australian National University: ANU Digital Collections
2
Cambridge University Press (via Crossref)
2
Carleton University's Institutional Repository
2
Columbia University: Academic Commons
2
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
2
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
2
Informa
2
Institut national des sciences de l'Univers: HAL-INSU
2
Northumbria University, Newcastle: Northumbria Research Link (NRL)
2
Oxford University Press (via Crossref)
2
SAGE Publications (via Crossref)
2
Universidad Complutense de Madrid (UCM): E-Prints Complutense
2
Universidade do Algarve: Sapienta
2
University of Bristol: Bristol Research
2
University of Tromsø: Septentrio Academic Publishing
2
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