Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
169
Zenodo
71
Directory of Open Access Journals: DOAJ Articles
55
Unknown
26
PANGAEA - Data Publisher for Earth & Environmental Science
23
LeibnizOpen (The Leibniz Association)
19
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
17
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
17
MDPI Open Access Publishing
17
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
15
University of Tasmania: UTas ePrints
14
Digital.CSIC (Spanish National Research Council)
11
Université de Nantes: HAL-UNIV-NANTES
11
Institut national des sciences de l'Univers: HAL-INSU
8
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
8
HAL Sorbonne Université
6
University of St Andrews: Research Portal
6
Università degli Studi di Genova: CINECA IRIS
6
Dipòsit Digital de la Universitat de Barcelona
5
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
5
National Institute of Polar Research Repository, Japan
5
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
5
University of North Texas: UNT Digital Library
5
ARPI - Archivio della Ricerca dell'Università di Pisa
4
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
4
Ege University Institutional Repository
4
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
4
HAL - Université de La Rochelle
4
Indian Institute of Geomagnetism (IIG): Repository
4
Magnolia press
4
Polar Research
4
Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual)
4
University of California: eScholarship
4
University of St Andrews: Digital Research Repository
4
Università Politecnica delle Marche: IRIS
4
Apollo - University of Cambridge Repository
3
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
3
Defense Technical Information Center: DTIC Technical Reports database
3
Ohio State University (OSU): Knowledge Bank
3
Sapienza Università di Roma: CINECA IRIS
3
Università degli Studi di Urbino: CINECA IRIS
3
Utrecht University Repository
3
École Polytechnique, Université Paris-Saclay: HAL
3
École des Ponts ParisTech: HAL
3
Aalto University Publication Archive (Aaltodoc)
2
Digital Collections of Colorado (Colorado State University)
2
Ghent University Academic Bibliography
2
IRIS Università degli Studi di Napoli Federico II
2
Institutional Repository of Leibniz Universität Hannover
2
Masaryk University Journals
2
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