Content Provider
Directory of Open Access Journals: DOAJ Articles
134
DataCite Metadata Store (German National Library of Science and Technology)
116
Natural Environment Research Council: NERC Open Research Archive
77
Unknown
73
PANGAEA - Data Publisher for Earth & Environmental Science
66
LeibnizOpen (The Leibniz Association)
60
PubMed Central (PMC)
55
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
51
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
39
Université de Nantes: HAL-UNIV-NANTES
33
Digital.CSIC (Spanish National Research Council)
30
Copernicus Publications: E-Journals
29
Cambridge University Press
28
University of Southampton: e-Prints Soton
27
eCite UTAS (University of Tasmania)
25
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
22
Niedersächsisches Online-Archiv NOA
22
University of Groningen research database
21
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
18
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
17
MDPI Open Access Publishing
16
University of California: eScholarship
14
Institut national des sciences de l'Univers: HAL-INSU
13
Springer Nature (via Crossref)
13
Université de Bourgogne (UB): HAL
13
Universidad de Chile: Repositorio académico
12
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
11
DIAL@USL-B (Université Saint-Louis, Bruxelles)
11
NIOZ Repository (Royal Netherlands Institute for Sea Research)
9
University of Tasmania: UTas ePrints
9
Ghent University Academic Bibliography
8
HAL Sorbonne Université
8
Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual)
8
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
7
University of St Andrews: Research Portal
7
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
6
Instituto Español de Oceanografía: e-IEO
6
Padua Research Archive (IRIS - Università degli Studi di Padova)
6
Pensoft Publishers
6
RI FURG (Repositório da Universidade Federal do Rio Grande)
6
ScholarsArchive@OSU (Oregon State University)
6
Utrecht University Repository
6
Aix-Marseille Université: HAL
5
Apollo - University of Cambridge Repository
5
Defense Technical Information Center: DTIC Technical Reports database
5
Max Planck Society: MPG.PuRe
5
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
5
Muséum National d'Histoire Naturelle (MNHM): HAL
5
ScienceDirect (Elsevier - via Crossref)
5
ScienceDirect (Elsevier)
5
more ...