Content Provider
Arctic Data Center (via DataONE)
24
LeibnizOpen (The Leibniz Association)
21
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
10
IEDA: US Antarctic Program Data Center (via DataONE)
9
Australian National University: ANU Digital Collections
8
Unknown
7
DataCite Metadata Store (German National Library of Science and Technology)
6
Frontiers: Figshare
4
Zenodo
4
Directory of Open Access Journals: DOAJ Articles
2
University of Copenhagen: Research
2
University of Massachusetts: ScholarWorks@UMass Amherst
2
Aarhus University: Research
1
Archivio della ricerca dell'Università di Parma (CINECA IRIS)
1
DORA Eawag
1
DataSpace at Princeton University
1
Digital.CSIC (Spanish National Research Council)
1
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
1
HELDA – University of Helsinki Open Repository
1
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System)
1
Jultika - University of Oulu repository
1
Justus-Liebig-Universität Giessen: JLUpub
1
LaCRIS - University of Lapland Current Research System
1
Lund University Publications (LUP)
1
MDPI Open Access Publishing
1
NOAA NCEI Environmental Data Archive (via DataONE)
1
Peoples' Friendship University of Russia (RUDN): Open repository
1
Portal Czasopism Naukowych (E-Journals)
1
Publication Server of the Justus-Liebig-University of Giessen
1
Qatar University: QU Institutional Repository
1
Queensland University of Technology: QUT ePrints
1
RE.PUBLIC@POLIMI - Research Publications at Politecnico di Milano
1
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
1
San José State University: SJSU ScholarWorks
1
The Czech Academy of Sciences: Publication Activity (ASEP)
1
UFZ - Publication Index (Helmholtz-Centre for Environmental Research)
1
Umeå University: Publications (DiVA)
1
University of California: eScholarship
1
University of Tromsø: Munin Open Research Archive
1
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca)
1
Università degli Studi di Urbino: CINECA IRIS
1
Université Laval: CorpusUL
1
Université du Québec à Trois-Rivières: Dépôt numérique de UQTR
1
Vrije Universiteit Amsterdam (VU): Research Portal
1
Wageningen UR (University & Research Centre): Digital Library
1