Content Provider
LeibnizOpen (The Leibniz Association)
22
Directory of Open Access Journals: DOAJ Articles
13
Unknown
11
University of California: eScholarship
5
University of Iceland: Peer Reviewed Journals
4
National Research Council Canada: NRC Publications Archive
3
University of Wollongong, Australia: Research Online
3
DataCite Metadata Store (German National Library of Science and Technology)
2
University College London: UCL Discovery
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Avtomobil'. Doroga. Infrastruktura (E-Journal)
1
HAL Lyon 1 (University Claude Bernard Lyon 1)
1
Herald of the Odessa National Maritime University (E-Journal)
1
INSA Lyon HAL (Institut National des Sciences Appliquées)
1
IRIS Università degli Studi di Perugia
1
Interactive Plus (E-Journal)
1
JYX - Jyväskylä University Digital Archive
1
LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library)
1
LSRC VL (Lithuanian Social Research Centre Virtual Library)
1
LSU VL (Lithuanian Sports University Virtual Library)
1
Linköping University Electronic Press
1
Lund University Publications (LUP)
1
OpenEdition
1
Oslo and Akershus University College of Applied Sciences (HiOA): Open Access Journals
1
OsloMet Open Access journals
1
Project Baikal (Siberian journal of architecture, design and urbanism)
1
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
1
Repository of the Vitebsk State University named after P. M. Masherov
1
Samara University Journals
1
Universidad Nacional Mayor de San Marcos: Revistas de investigación UNMSM
1
University of St Andrews: Research Portal
1
University of Western Sydney (UWS): Research Direct
1
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste)
1
Université de Lyon: HAL
1
Université de Nantes: HAL-UNIV-NANTES
1
Wageningen UR (University & Research Centre): Digital Library
1
Zenodo
1
eaDNURT (Electronic Archiv of Dnepropetrowsk National University of Railway Transport)
1