Content Provider
50sea Journals
1
AAAI Publications (Association for the Advancement of Artificial Intelligence)
3
AAAS Resource Center (American Association for the Advancement of Science - via Crossref)
538
AAAS Resource Center (American Association for the Advancement of Science)
354
ACM Publications (Association for Computing Machinery - via Crossref)
9
ACM Publications (Association for Computing Machinery)
2
ACS Publications
290
ACS Publications (via Crossref)
177
ADDI: Repositorio Institucional de la Universidad del País Vasco (UPV)
19
AGPE The Royal Gondwana Research Journal
1
AIP Publishing
231
AJOL - African Journals Online
79
AMA
1
AMA (via Crossref)
12
AMPCo (Australasian Medical Publishing Company - via Crossref)
46
AMPCo (Australasian Medical Publishing Company)
1
AMUR - Adam Mickiewicz University Repository, Poznan
3
ANU Press (Australian National University - via Crossref)
22
ANU Press (Australian National University)
1
APA Publishing (American Psychological Association - via Crossref)
2
APA Publishing (American Psychological Association)
34
APS Digital Library (American Philosophical Society)
4
APS Publications (American Physical Society - via Crossref)
8
APS Publications (American Physical Society)
6
ARCIMÍS (Archivo Climatológico y Meteorológico Institucional - AEMET, Agencia Estatal de Meteorología)
58
ARPI - Archivio della Ricerca dell'Università di Pisa
427
ARUd'A - Archivio Istituzionale della ricerca dell'università Chieti-Pescara (IRIS)
6
ASCE Publications (American Society of Civil Engineers)
3
ASCE Publications (via Crossref)
1
ASERS Publishing Journals
1
ASI Research Portal (Arkansas Studies Institute Catalog)
1
ASIA University, Taiwan: Instiutional Repository (ASIAIR)
1
ASM Journals (American Society for Microbiology - via Crossref)
158
ASM Journals (American Society for Microbiology)
153
ASSAf Research Respository (Academy of Science of South Africa)
2
ASU VL (VMU - Vytautas Magnus University Agriculture Academy Virtual Library)
1
AU Digital Research Archive (American University)
1,349
AUC Knowledge Fountain (The American University in Cairo)
4
AUrora - Auburn University Scholarly Repository
4
Aalborg University's Research Portal
14
Aalto University Publication Archive (Aaltodoc)
29
Aarhus University: OJS at The State and University Library
27
Aarhus University: Research
232
Aberdeen University Research Archive (AURA)
56
Abilene Christian University: Digital Commons @ ACU
4
Academy of Science of South Africa (ASSAf): Open Journal Systems
4
Acta Chimica Slovenica (E-Journal)
2
Adam Mickiewicz University in Poznań: PRESSto
2
Adnan Menderes University: eArsiv@Adu
1
Afyon Kocatepe University Institutional Repository (DSpace@AKU)
2
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