Content Provider
Biodiversity Heritage Library (BHL)
91
WikiBooks - Open-content textbooks
83
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
11
Arctic Portal Library
9
Cambridge University Press
8
Springer Nature
7
Technical University of Denmark: DTU Orbit
6
UNESDOC - UNESCO Digital Library
6
ScholarSpace at University of Hawaii at Manoa
5
University of Copenhagen: Research
5
Aarhus University: Research
4
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
4
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
4
Unknown
4
DataCite Metadata Store (German National Library of Science and Technology)
3
Frontiers (Publisher)
3
GEO-LEOe-docs (FID GEO)
3
Oxford University Press (via Crossref)
3
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
2
Lund University Publications (LUP)
2
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
2
Springer Nature (via Crossref)
2
Texas A&M University Digital Repository
2
University of Southampton: e-Prints Soton
2
University of Tromsø: Munin Open Research Archive
2
Australian National University: ANU Digital Collections
1
Danish Defense Research Portal
1
De Gruyter
1
FIRe! - Publikationsserver des FIZBw (Fachinformationszentrum der Bundeswehr)
1
Falmouth University Research Repository (FURR)
1
IIASA DARE (Data Repository of the International Institute of Applied Systems Analysis)
1
Informa (via Crossref)
1
JSTOR
1
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
1
National Institute of Polar Research Repository, Japan
1
Norsk Polarinstitutt: Brage NP
1
Ohio State University (OSU): Knowledge Bank
1
Publication Database IASS (Institute for Advanced Sustainability Studies Potsdam)
1
RePEc (Research Papers in Economics)
1
ScienceDirect (Elsevier - via Crossref)
1
Texas A&M University Galveston Campus: DSpace Repository
1
The National Academies Press (via Crossref)
1
UNC Press (The University of North Carolina - via Crossref)
1
Universidade of Minho: RepositóriUM
1
University of California Press
1
University of Wollongong, Australia: Research Online
1
University of the Highlands and Islands: Research Database of UHI
1
Utrecht University Repository
1
White Rose Research Online (Universities of Leeds, Sheffield & York)
1
Zenodo
1
more ...