Content Provider
AAAS Resource Center (American Association for the Advancement of Science - via Crossref)
28
AAAS Resource Center (American Association for the Advancement of Science)
78
ACS Publications
19
ACS Publications (via Crossref)
6
AIP Publishing
7
AJOL - African Journals Online
20
ANU Press (Australian National University - via Crossref)
1
ANU Press (Australian National University)
1
APS Publications (American Physical Society)
1
ARCIMÍS (Archivo Climatológico y Meteorológico Institucional - AEMET, Agencia Estatal de Meteorología)
3
ARPI - Archivio della Ricerca dell'Università di Pisa
13
ARUd'A - Archivio Istituzionale della ricerca dell'università Chieti-Pescara (IRIS)
1
ASM Journals (American Society for Microbiology - via Crossref)
8
ASM Journals (American Society for Microbiology)
10
ASSAf Research Respository (Academy of Science of South Africa)
1
AU Digital Research Archive (American University)
1
AUC Knowledge Fountain (The American University in Cairo)
2
AUrora - Auburn University Scholarly Repository
3
Aarhus University: OJS at The State and University Library
1
Aarhus University: Research
36
Aberdeen University Research Archive (AURA)
6
AgEcon Search - Research in Agricultural & Applied Economics
4
AgroParisTech: HAL (Institut des sciences et industries du vivant et de l'environnement)
13
Airlangga University: UNAIR Repository
1
Aix-Marseille Université: HAL
149
Akademicka Platforma Czasopism
1
Akademicka Platforma Czasopism (APCZ)
1
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
1,668
American Museum of Natural History: AMNH scientific publications
2
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre)
10
Anglia Ruskin University: Anglia Ruskin Research Online (ARRO)
9
Anglia Ruskin University: Figshare
10
Annals of Geophysics (INGV, Istituto Nazionale di Geofisica e Vulcanologia)
2
Apollo - University of Cambridge Repository
75
ArXiv.org (Cornell University Library)
48
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
566
Archive Ouverte de l'Université Rennes (HAL)
11
Archive de l'Observatoire de Paris (HAL)
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1,516
Archives ouvertes de Paris-Saclay
280
Archives ouvertes du Conservatoire national des arts et métiers
1
Archivio della ricerca dell'Università di Modena e Reggio Emilia (Unimore: IRIS)
14
Archivio della ricerca dell'Università di Parma (CINECA IRIS)
15
Archivo Digital UPM (Universidad Politécnica de Madrid)
1
Arctic Data Center (via DataONE)
5
Arctic Institute of North America (via Crossref)
2
Arctic Portal Library
39
Arctic and Antarctic Research (E-Journal)
4
Arizona State University: ASU Digital Repository
1
Atlantis Press (via Crossref)
1
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