Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
10,576
Directory of Open Access Journals: DOAJ Articles
639
CyberLeninka (Scientific Electronic Library)
418
Theseus.fi (Open Repository of the Universities of Applied Sciences)
405
Unknown
237
Zenodo
207
Federation of Finnish Learned Societies: Scientific Journals Online
171
The Library of Congress: American Memory
169
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto
93
PubMed Central (PMC)
86
National Institute for Health and Welfare (THL), Finland: Julkari
81
HELDA – University of Helsinki Open Repository
74
Natural Resources Institute Finland: Jukuri
74
RePEc (Research Papers in Economics)
68
Wiley Online Library (via Crossref)
63
University of Michigan: Digital Collections
62
HighWire Press (Stanford University)
59
PennState: Digital Collections
58
Jultika - University of Oulu repository
45
UEF eRepository (University of Eastern Finland)
45
ScienceDirect (Elsevier - via Crossref)
44
Springer Nature (via Crossref)
43
LeibnizOpen (The Leibniz Association)
41
LUTPub (LUT University)
36
Interactive Plus (E-Journal)
32
Saint Petersburg State University: Research Repository (DSpace SPbU)
32
Ural Federal University (URFU): ELAR
32
MDPI Open Access Publishing
31
MIT Libraries Dome
28
Informa (via Crossref)
27
SAGE Publications (via Crossref)
27
Wiley Online Library
27
JYX - Jyväskylä University Digital Archive
26
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
25
IOP Publishing (via Crossref)
24
Oxford University Press (via Crossref)
24
University of Turku: UTUPub
24
Doria (National Library of Finland)
22
Cambridge University Press
20
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
20
NORA (National aggregator of open repositories of Russian universities)
19
De Gruyter (via Crossref)
18
LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library)
18
LSRC VL (Lithuanian Social Research Centre Virtual Library)
18
University of Washington, Seattle: Digital Collections
18
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
15
OLAC: Open Language Archives Community
15
Université de Nantes: HAL-UNIV-NANTES
15
Institut national des sciences de l'Univers: HAL-INSU
14
SSOAR - Social Science Open Access Repository
14
more ...