Content Provider
Directory of Open Access Journals: DOAJ Articles
5
Unknown
5
DataCite Metadata Store (German National Library of Science and Technology)
4
Niedersächsisches Online-Archiv NOA
4
Cambridge University Press
3
Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands)
3
Naturalis Institutional Repository
3
University of Groningen research database
3
Lund University Publications (LUP)
2
The Royal Society (via Crossref)
2
University of California: eScholarship
2
AAAS Resource Center (American Association for the Advancement of Science)
1
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
1
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Brill (via Crossref)
1
Cambridge University Press (via Crossref)
1
Canadian Science Publishing (via Crossref)
1
CentAUR: Central Archive at the University of Reading
1
ETH Zürich Research Collection
1
Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources)
1
HELDA – University of Helsinki Open Repository
1
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
1
Macquarie University Research Portal
1
Max Planck Society: MPG.PuRe
1
Murdoch University: Murdoch Research Repository
1
NIOZ Repository (Royal Netherlands Institute for Sea Research)
1
National Institute of Polar Research Repository, Japan
1
Natural Environment Research Council: NERC Open Research Archive
1
OpenEdition
1
Oxford University Press
1
Repositorio Nacional Gobierno de Mexico
1
SAGE Publications (via Crossref)
1
SMHI (Swedish Meteorological and Hydrological Institute): Vetenskapliga Publikationer (DiVA)
1
Saint Petersburg State University: Research Repository (DSpace SPbU)
1
Technical University of Denmark: DTU Orbit
1
University of Bergen: Bergen Open Research Archive (BORA-UiB)
1
University of Calgary Journal Hosting
1
University of Potsdam: publish.UP
1
University of Southern Queensland: USQ ePrints
1
University of Tromsø: Munin Open Research Archive
1
Université de Nantes: HAL-UNIV-NANTES
1