Content Provider
Directory of Open Access Journals: DOAJ Articles
47
University of Tasmania: UTas ePrints
38
eCite UTAS (University of Tasmania)
38
PubMed Central (PMC)
37
Unknown
34
Natural Environment Research Council: NERC Open Research Archive
33
DataCite Metadata Store (German National Library of Science and Technology)
26
University of St Andrews: Research Portal
25
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
23
LeibnizOpen (The Leibniz Association)
20
Université de Nantes: HAL-UNIV-NANTES
17
Cambridge University Press
12
Institute for Marine Research: Brage IMR
12
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
12
HAL - Université de La Rochelle
11
Springer Nature (via Crossref)
11
Wiley Online Library
11
OpenAgrar (OA)
10
Padua Research Archive (IRIS - Università degli Studi di Padova)
9
Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML)
9
Digital.CSIC (Spanish National Research Council)
8
Institut national des sciences de l'Univers: HAL-INSU
8
National Institute of Polar Research Repository, Japan
8
Wageningen UR (University & Research Centre): Digital Library
8
HAL Sorbonne Université
7
The University of Queensland: UQ eSpace
7
MDPI Open Access Publishing
6
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
6
PANGAEA - Data Publisher for Earth & Environmental Science
6
UFZ - Publication Index (Helmholtz-Centre for Environmental Research)
6
HighWire Press (Stanford University)
5
ScienceDirect (Elsevier - via Crossref)
5
University of California: eScholarship
5
University of Canterbury, Christchurch: UC Research Repository
5
Università degli Studi di Ferrara: CINECA IRIS
5
Wiley Online Library (via Crossref)
5
Canadian Science Publishing (via Crossref)
4
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
4
Griffith University: Griffith Research Online
4
Oxford University Press
4
Universidade de Coimbra: Estudo Geral
4
University of Groningen research database
4
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
3
Copernicus Publications: E-Journals
3
KU Leuven: Lirias
3
National Institute of Oceanography, India: Digital Repository Service (DRS@nio)
3
Oxford University Press (via Crossref)
3
Technical University of Denmark: DTU Orbit
3
The Royal Society (via Crossref)
3
University of Leicester: Leicester Research Archive (LRA)
3
more ...