Content Provider
AAAS Resource Center (American Association for the Advancement of Science - via Crossref)
5
AAAS Resource Center (American Association for the Advancement of Science)
23
ACM Publications (Association for Computing Machinery)
1
AIP Publishing
10
AMA
1
AMA (via Crossref)
3
APS Publications (American Physical Society - via Crossref)
3
APS Publications (American Physical Society)
7
ARCIMÍS (Archivo Climatológico y Meteorológico Institucional - AEMET, Agencia Estatal de Meteorología)
1
ARPI - Archivio della Ricerca dell'Università di Pisa
5
ASM Journals (American Society for Microbiology - via Crossref)
1
ASM Journals (American Society for Microbiology)
1
Aarhus University: Research
2
Aix-Marseille Université: HAL
16
Akademia Ignatianum w Krakowie: Czasopisma
1
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre)
5
Anglia Ruskin University: Anglia Ruskin Research Online (ARRO)
1
Anglia Ruskin University: Figshare
1
Annals of Geophysics (INGV, Istituto Nazionale di Geofisica e Vulcanologia)
1
Apollo - University of Cambridge Repository
4
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
3
Archive de l'Observatoire de Paris (HAL)
10
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
239
Archives ouvertes de Paris-Saclay
14
Archivio della ricerca dell'Università di Modena e Reggio Emilia (Unimore: IRIS)
2
Arctic Institute of North America
3
Arctic Portal Library
3
Arctic and Antarctic Research (E-Journal)
1
Australian National University: ANU Digital Collections
14
Açık Erişim@BUU (Bursa Uludağ Üniversitesi)
1
BIROn - Birkbeck Institutional Research Online (Birkbeck University of London)
4
BORIS (Bern Open Repository and Information System, University of Bern)
17
Bangor University: Research Portal
1
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
3
Bolu Abant İzzet Baysal University Institutional Repository
1
Brill
1
Brill (via Crossref)
1
CNR Solar (Scientific Open-access Literature Archive and Repository - National Research Council)
6
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
15
CTU Open Journal Systems (Czech Technical University, Prague
1
Caltech Authors (California Institute of Technology)
179
Cambridge University Press
103
Cambridge University Press (via Crossref)
47
Canadian Science Publishing
2
Canadian Science Publishing (via Crossref)
2
Cardiff University: ORCA (Online Research @ Cardiff)
89
Carleton University's Institutional Repository
1
Cartography and Geoinformation (Journal of the Croatian Cartographic Society)
1
Center for Scientific Publication: PPI (Pusat Publikasi Ilmiah - LPPM Institut Teknologi Sepuluh Nopember)
2
City University London: City Research Online
1
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