Content Provider
Directory of Open Access Journals: DOAJ Articles
186
DataCite Metadata Store (German National Library of Science and Technology)
145
CyberLeninka (Scientific Electronic Library)
99
Federation of Finnish Learned Societies: Scientific Journals Online
75
Unknown
66
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto
42
Theseus.fi (Open Repository of the Universities of Applied Sciences)
42
Zenodo
24
HELDA – University of Helsinki Open Repository
23
Jultika - University of Oulu repository
20
Ural Federal University (URFU): ELAR
20
Natural Resources Institute Finland: Jukuri
15
OLAC: Open Language Archives Community
15
Saint Petersburg State University: Research Repository (DSpace SPbU)
14
University of Vienna: Phaidra
14
ScienceDirect (Elsevier - via Crossref)
12
Wiley Online Library (via Crossref)
12
RePEc (Research Papers in Economics)
11
Springer Nature (via Crossref)
11
Doria (National Library of Finland)
10
JYX - Jyväskylä University Digital Archive
10
Wiley Online Library
10
UEF eRepository (University of Eastern Finland)
9
University of Tartu: ojs.utlib.ee
9
LUTPub (LUT University)
8
University of Turku: UTUPub
8
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
7
Cambridge University Press
7
University of Michigan: Digital Collections
7
University of Missouri: MOspace
6
HighWire Press (Stanford University)
5
IOP Publishing (via Crossref)
5
MDPI Open Access Publishing
5
NORA (National aggregator of open repositories of Russian universities)
5
PubMed Central (PMC)
5
Tampere University: Trepo
5
UI Press - University of Illinois Press (via Crossref)
5
Université de Nantes: HAL-UNIV-NANTES
5
Brill (via Crossref)
4
Directory of Open Access Books (DOAB)
4
Johns Hopkins University Press
4
Kazan Federal University Digital Repository
4
LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library)
4
LSRC VL (Lithuanian Social Research Centre Virtual Library)
4
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
4
Oxford University Press (via Crossref)
4
Åbo Akademi: Open Journal Systems
4
ArXiv.org (Cornell University Library)
3
Bentham Science Publishers (via Crossref)
3
BioMed Central
3
more ...