Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
1,666
PANGAEA - Data Publisher for Earth & Environmental Science
453
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
308
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
128
Directory of Open Access Journals: DOAJ Articles
118
Unknown
85
LeibnizOpen (The Leibniz Association)
58
Copernicus Publications: E-Journals
54
Frontiers: Figshare
41
Arctic Data Center (via DataONE)
39
University of Tromsø: Munin Open Research Archive
39
Zenodo
36
Niedersächsisches Online-Archiv NOA
35
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
31
Natural Environment Research Council: NERC Open Research Archive
31
University of Southampton: e-Prints Soton
26
University of Bergen: Bergen Open Research Archive (BORA-UiB)
25
Max Planck Society: MPG.PuRe
23
Defense Technical Information Center: DTIC Technical Reports database
22
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
20
PubMed Central (PMC)
20
Université de Nantes: HAL-UNIV-NANTES
20
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
19
MDPI Open Access Publishing
16
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
15
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
15
HAL Sorbonne Université
14
Polar Research (E-Journal)
13
Frontiers (Publisher)
12
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
12
Technical University of Denmark: DTU Orbit
12
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
12
ETH Zürich Research Collection
11
GEO-LEOe-docs (FID GEO)
11
HighWire Press (Stanford University)
11
Institut national des sciences de l'Univers: HAL-INSU
11
École Polytechnique, Université Paris-Saclay: HAL
11
Digital.CSIC (Spanish National Research Council)
10
Muséum National d'Histoire Naturelle (MNHM): HAL
10
Archives ouvertes de Paris-Saclay
9
Institute for Marine Research: Brage IMR
9
NIOZ Repository (Royal Netherlands Institute for Sea Research)
9
Purdue University: e-Pubs
9
ScholarsArchive@OSU (Oregon State University)
9
ScienceDirect (Elsevier - via Crossref)
9
University College London: UCL Discovery
9
Université de Paris: Portail HAL
8
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
7
Naval Postgraduate School: Calhoun
7
Polar Research
7
more ...