Content Provider
University of Calgary Journal Hosting
7
University of North Texas: UNT Digital Library
5
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
4
Biodiversity Heritage Library (BHL)
4
DataCite Metadata Store (German National Library of Science and Technology)
4
Directory of Open Access Journals: DOAJ Articles
3
Charles University CU Digital repository
2
Digital.CSIC (Spanish National Research Council)
2
University of Michigan: Digital Collections
2
Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto)
2
Unknown
2
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
2
Aksaray University Institutional Repository (DSpace@Aksaray)
1
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Australian Nuclear Science and Technology Organisation: ANSTO Publications Online
1
DataverseNO
1
Dipòsit Digital de la Universitat de Barcelona
1
GFZ Data Services (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
1
Institut national des sciences de l'Univers: HAL-INSU
1
Jultika - University of Oulu repository
1
MACAU: Open Access Repository of Kiel University
1
National Taiwan Normal University: NTNU Institutional Repository
1
Natural Resources Institute Finland: Jukuri
1
OhioLINK: Electronic Theses and Dissertations Center
1
Opin vísindi (Iceland)
1
Polar Research
1
RUA - Repositorio Institucional de la Universidad de Alicante
1
Revistas Científicas de la Universidad de Murcia
1
Technical University of Denmark: DTU Orbit
1
The Seattle Public Library Special Collections Online
1
The University of Waikato: Research Commons
1
Universidade Estadual Paulista São Paulo: Repositório Institucional UNESP
1
Universidade do Estado do Rio de Janeiro (UERJ): Biblioteca Digital de Teses e Dissertações da UERJ
1
University of Stirling: Stirling Digital Research Repository
1
Università degli Studi di Cagliari: UNICA IRIS
1
Université de Lorraine: HAL
1
Université de Nantes: HAL-UNIV-NANTES
1
Université de Paris: Portail HAL
1
Université du Québec à Trois-Rivières: Dépôt numérique de UQTR
1
Utah State University: DigitalCommons@USU
1