Content Provider
Directory of Open Access Journals: DOAJ Articles
14
Natural Environment Research Council: NERC Open Research Archive
11
Digital.CSIC (Spanish National Research Council)
7
Digital Commons University of South Florida (USF)
5
University of South Florida St. Petersburg: Digital USFSP
5
DataCite Metadata Store (German National Library of Science and Technology)
4
Old Dominion University: ODU Digital Commons
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
2
Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML)
2
Universidad de Las Palmas de Gran Canaria: Acceda
2
eCite UTAS (University of Tasmania)
2
Dipòsit Digital de la Universitat de Barcelona
1
Frontiers (Publisher)
1
HAL - Université de La Rochelle
1
Institut national des sciences de l'Univers: HAL-INSU
1
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
1
ORA - Oxford University Research Archive
1
Oxford University Press
1
Padua Research Archive (IRIS - Università degli Studi di Padova)
1
Publikationsdatenbank der Fraunhofer-Gesellschaft
1
ScienceDirect (Elsevier)
1
Springer Nature (via Crossref)
1
The Open University: Open Research Online (ORO)
1
The University of Adelaide: Digital Library
1
Tomsk State University Research Library
1
UFZ - Publication Index (Helmholtz-Centre for Environmental Research)
1
Universidade do Algarve: Sapienta
1
University of East Anglia: UEA Digital Repository
1
University of Groningen research database
1
University of Southampton: e-Prints Soton
1
University of Tromsø: Munin Open Research Archive
1
University of the Highlands and Islands: Research Database of UHI
1
Università degli Studi di Siena: USiena air
1
Université de Nantes: HAL-UNIV-NANTES
1
Unknown
1