Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
248
PANGAEA - Data Publisher for Earth & Environmental Science
133
Directory of Open Access Journals: DOAJ Articles
122
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
89
CyberLeninka (Scientific Electronic Library)
54
Unknown
54
MDPI Open Access Publishing
45
LeibnizOpen (The Leibniz Association)
40
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
39
IOP Publishing (via Crossref)
36
Université de Nantes: HAL-UNIV-NANTES
30
Aix-Marseille Université: HAL
19
RePEc (Research Papers in Economics)
18
HAL Université Côte d'Azur
17
Institut national des sciences de l'Univers: HAL-INSU
17
Université d'Avignon et des Pays de Vaucluse: HAL
17
Archives ouvertes de Paris-Saclay
16
NORA (National aggregator of open repositories of Russian universities)
16
Zenodo
16
Ice and Snow (E-Journal)
13
Wiley Online Library (via Crossref)
13
Copernicus Publications: E-Journals
12
ScienceDirect (Elsevier - via Crossref)
12
Tomsk Polytechnic University (TPU): Electronic Archive
12
Kazan Federal University Digital Repository
11
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
10
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
10
Wiley Online Library
10
Arctic Data Center (via DataONE)
9
PubMed Central (PMC)
9
Frontiers (Publisher)
8
Portail HAL-ANR (Agence Nationale de la Recherche)
8
Siberian Federal University: Archiv Elektronnych SFU
8
Cambridge University Press
7
Frontiers: Figshare
7
Niedersächsisches Online-Archiv NOA
6
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
6
University of Potsdam: publish.UP
6
DIAL@UCLouvain (Université catholique de Louvain)
5
DIAL@USL-B (Université Saint-Louis, Bruxelles)
5
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
5
Defense Technical Information Center: DTIC Technical Reports database
4
Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya
4
Journals at the University of Arizona
4
Max Planck Society: MPG.PuRe
4
Springer Nature (via Crossref)
4
UFZ - Publication Index (Helmholtz-Centre for Environmental Research)
4
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
3
IOP Publishing
3
International Arctic Research Center (IARC) Data Archive (via DataONE)
3
more ...