Content Provider
AAAS Resource Center (American Association for the Advancement of Science)
1
ADDI: Repositorio Institucional de la Universidad del País Vasco (UPV)
4
AFTI Scholar (Air Force Institute of Technology)
2
AIP Publishing
41
AJOL - African Journals Online
2
APS Publications (American Physical Society)
2
ARCIMÍS (Archivo Climatológico y Meteorológico Institucional - AEMET, Agencia Estatal de Meteorología)
2
ARPI - Archivio della Ricerca dell'Università di Pisa
5
ARUd'A - Archivio Istituzionale della ricerca dell'università Chieti-Pescara (IRIS)
4
ASERS Publishing Journals
2
ASI Research Portal (Arkansas Studies Institute Catalog)
1
ASSAf Research Respository (Academy of Science of South Africa)
2
ASU VL (VMU - Vytautas Magnus University Agriculture Academy Virtual Library)
1
ATE Central Resource Collection (Advanced Technological Education)
1
AU Digital Research Archive (American University)
1
AU Library Scholarly Publishing Services: E-books (Aarhus University)
1
Aalborg University's Research Portal
11
Aalto University Publication Archive (Aaltodoc)
15
Aarhus University: OJS at The State and University Library
3
Aarhus University: Research
20
Aberdeen University Research Archive (AURA)
7
Aerospace Scientific Journal
1
Agricultural Science Euro-North-East (E-Journal)
1
AgroParisTech: HAL (Institut des sciences et industries du vivant et de l'environnement)
7
Agrocampus Ouest: HAL
4
Aix-Marseille Université: HAL
22
Akademicka Platforma Czasopism
1
Akademicka Platforma Czasopism (APCZ)
1
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
67
Altai State University: Scientific Journals of ASU
11
Alternative Energy and Ecology (ISJAEE)
2
American Scientific Publishers
2
American Scientific Publishers (via Crossref)
8
American Society for Engineering Education (ASEE): Papers on Engineering Education Repository (PEER)
2
American University in Cairo: Rare Books and Special Collections Digital Library
2
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre)
1
Annals of Geophysics (INGV, Istituto Nazionale di Geofisica e Vulcanologia)
1
Apollo - University of Cambridge Repository
28
ArXiv.org (Cornell University Library)
352
Arbor
1
Archaeology, Ethnology & Anthropology of Eurasia (E-Journal)
1
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
29
Archive Ouverte de l'Université Rennes (HAL)
11
Archive de l'Observatoire de Paris (HAL)
14
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
791
Archive ouverte du Service de Santé des Armées (HAL)
2
Archives ouvertes Hal IMT Atlantique
11
Archives ouvertes de Paris-Saclay
113
Archives ouvertes du Conservatoire national des arts et métiers
3
Archivio della ricerca dell'Università di Modena e Reggio Emilia (Unimore: IRIS)
1
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