Content Provider
Directory of Open Access Journals: DOAJ Articles
450
Croatian Digital Theses Repository (National and University Library in Zagreb)
81
DigiZeitschriften: The German digital journal archive (Göttingen University Library)
81
MTAK: REAL (Library and Information Centre of the Hungarian Academy of Sciences
43
Unknown
29
DataCite Metadata Store (German National Library of Science and Technology)
27
CyberLeninka (Scientific Electronic Library)
21
Saint Petersburg State University: Research Repository (DSpace SPbU)
18
University of Zadar Institutional Repository
18
Vytautas Magnus University e-Publication Repository (VMU ePub)
17
Hrčak - Portal of scientific journals of Croatia
16
RUNIOS - Repository of Josip Juraj Strossmayer University of Osijek
15
The University of Split Repository
14
David Rumsey Historical Map Collection (Cartography Associates)
11
UI Press - University of Illinois Press (via Crossref)
11
Repository of the University of Rijeka
10
Hathi Trust Digital Library
8
Croatian Digital Dissertations Repository (National and University Library in Zagreb)
7
JSTOR (via Crossref)
7
Repozytorium Uniwersytetu w Białymstoku (RUB)
7
Ural Federal University (URFU): ELAR
7
Digital Repository Juraj Dobrila University of Pula
6
Frontiers: Figshare
6
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
6
The University of Utah: J. Willard Marriott Digital Library
6
University of Vienna: Phaidra
6
HELDA – University of Helsinki Open Repository
5
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto
5
Karazin Kharkiv National University: E-Journals
5
University of Kent: KAR - Kent Academic Repository
5
Cambridge University Press
4
Jultika - University of Oulu repository
4
NORA (National aggregator of open repositories of Russian universities)
4
Ural Federal University: URFU Journal Systems
4
AMAD - "Archivum Medii Aevi Digitale - Specialized open access repository for research in the middle ages"
3
Brill
3
Electrical Engineering and Power Engineering (EE&PE - E-Journal)
3
Hunter Library Digital Collections (Western Carolina University)
3
Opin vísindi (Iceland)
3
Peoples' Friendship University of Russia (RUDN): Open repository
3
Samara University Journals
3
Scientific Periodicals of Ukraine (Ukrainian Research and Academic Network)
3
Sebelas Maret University: UNS Institutional Repository (UNS-IR)
3
University College Dublin: UCD Digital Library
3
University of Chicago Press (via Crossref)
3
University of Essex Research Repository
3
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca)
3
Uppsala University: Publications (DiVA)
3
Wiley Online Library (via Crossref)
3
e_Buah - Biblioteca Digital de la Universidad de Alcalá
3
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