Content Provider
Directory of Open Access Journals: DOAJ Articles
148
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
93
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
90
DataCite Metadata Store (German National Library of Science and Technology)
75
Wiley Online Library (via Crossref)
67
VIURRSpace (Royal Roads University and Vancouver Island University)
62
Irstea Publications et Bases documentaires (Irstea@doc/CemOA)
61
ScienceDirect (Elsevier)
55
Wiley Online Library
55
Springer Nature (via Crossref)
49
Unknown
44
ScienceDirect (Elsevier - via Crossref)
38
PubMed Central (PMC)
34
Springer Nature
33
Vancouver Island University: Viuspace
31
CyberLeninka (Scientific Electronic Library)
30
MDPI Open Access Publishing
24
Université de Nantes: HAL-UNIV-NANTES
24
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
14
Recep Tayyip Erdoğan University Institutional Repository (DSpace@RTEÜ)
14
The University of Milan: Archivio Istituzionale della Ricerca (AIR)
13
University of Michigan: Digital Collections
12
DergiPark Akademik (E-Journals)
11
Padua Research Archive (IRIS - Università degli Studi di Padova)
10
Zenodo
10
De Gruyter (via Crossref)
9
Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto)
9
Wageningen UR (University & Research Centre): Digital Library
9
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System)
8
Sciendo (de Gruyter - via CrossRef)
8
Digital.CSIC (Spanish National Research Council)
7
MTAK: REAL (Library and Information Centre of the Hungarian Academy of Sciences
7
Ghent University Academic Bibliography
6
TÜBİTAK Academic Journals
6
De Gruyter
5
Frontiers: Figshare
5
IRIS Università degli Studi di Perugia
5
KU Leuven: Lirias
5
The Czech Academy of Sciences: Publication Activity (ASEP)
5
University of Colorado Boulder, Law School: Scholarly Commons
5
University of Florida: Digital Library Center
5
Université Toulouse III - Paul Sabatier: HAL-UPS
5
IOP Publishing
4
Institute of Hydrobiology, Chinese Academy of Sciences: IHB OpenIR
4
Instituto Español de Oceanografía: e-IEO
4
International Journal of Aquatic Biology
4
Muséum National d'Histoire Naturelle (MNHM): HAL
4
Portail HAL ENVT (Ecole Nationale Vétérinaire de Toulouse)
4
Research Workspace (via DataONE)
4
South of Russia: ecology, development (E-Journal)
4
more ...