Content Provider
Directory of Open Access Journals: DOAJ Articles
41
Unknown
31
DataCite Metadata Store (German National Library of Science and Technology)
26
Cambridge University Press
24
LeibnizOpen (The Leibniz Association)
20
Copernicus Publications: E-Journals
17
PubMed Central (PMC)
15
Natural Environment Research Council: NERC Open Research Archive
14
eCite UTAS (University of Tasmania)
13
Niedersächsisches Online-Archiv NOA
11
University of Tasmania: UTas ePrints
11
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
10
Wiley Online Library
10
University of Canterbury, Christchurch: UC Research Repository
9
National Institute of Polar Research Repository, Japan
7
University of Groningen research database
7
Digital.CSIC (Spanish National Research Council)
6
PANGAEA - Data Publisher for Earth & Environmental Science
6
Université de Nantes: HAL-UNIV-NANTES
6
DIAL@USL-B (Université Saint-Louis, Bruxelles)
5
HAL Sorbonne Université
5
KU Leuven: Lirias
5
MDPI Open Access Publishing
5
Magnolia press
5
University of California: eScholarship
5
Università Politecnica delle Marche: IRIS
5
Università degli Studi di Genova: CINECA IRIS
5
Archives ouvertes de Paris-Saclay
4
DIAL@UCLouvain (Université catholique de Louvain)
4
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
4
HAL de l'Institut Polytechnique de Paris
4
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
4
Institut national des sciences de l'Univers: HAL-INSU
4
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
4
Montana State University (MSU): ScholarWorks
4
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
4
University of Southampton: e-Prints Soton
4
Università degli Studi di Siena: USiena air
4
Université de Paris: Portail HAL
4
Wiley Online Library (via Crossref)
4
École Polytechnique, Université Paris-Saclay: HAL
4
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
3
Max Planck Society: MPG.PuRe
3
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
3
Muséum National d'Histoire Naturelle (MNHM): HAL
3
Pensoft Publishers
3
Springer Nature (via Crossref)
3
Universitá degli Studi di Roma "Tor Vergata": ART - Archivio Istituzionale della Ricerca
3
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
3
Arctic Portal Library
2
more ...