Content Provider
Skemman (Iceland)
259
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
64
Directory of Open Access Journals: DOAJ Articles
63
Unknown
57
Hirsla - Landspítali University Hospital research archive
46
Université de Nantes: HAL-UNIV-NANTES
44
Opin vísindi (Iceland)
36
DataCite Metadata Store (German National Library of Science and Technology)
34
WikiBooks - Open-content textbooks
24
the clark - Digital Collections (Sterling and Francine Clark Art Institute Library)
18
PubMed Central (PMC)
15
Cambridge University Press
13
Informa (via Crossref)
13
University of Chicago Press
13
University of Tromsø: Septentrio Academic Publishing
13
Wiley Online Library
12
Australian National University: ANU Digital Collections
10
Digital.CSIC (Spanish National Research Council)
10
Springer Nature (via Crossref)
8
UQAM - Université du Québec à Montréal: archipel
8
University of Cumbria: Insight
8
Archives ouvertes de Paris-Saclay
7
Dove Medical Press
7
Lund University Publications Student Papers (LUP-SP)
7
MDPI Open Access Publishing
7
Université de Perpignan: HAL
7
CIRAD: HAL (Agricultural Research for Development)
6
HAL Portal Paul-Valéry University Montpellier 3
6
HighWire Press (Stanford University)
6
Université de Montpellier: HAL
6
Apollo - University of Cambridge Repository
5
Lund University Publications (LUP)
5
University of Copenhagen: Research
5
Wiley Online Library (via Crossref)
5
Aarhus University: Research
4
DIAL@USL-B (Université Saint-Louis, Bruxelles)
4
PUB - Publications at Bielefeld University
4
Portail des publications scientifiques de l’Université d’Angers (HAL)
4
Université de Rennes 1: Publications scientifiques (HAL)
4
norden (Nordic Council of Ministers): Publications (DiVA)
4
Informa
3
Johns Hopkins University Press
3
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
3
PORTO@iris (Publications Open Repository TOrino - Politecnico di Torino)
3
Rice University: Digital Scholarship Archive
3
Royal Institute of Technology, Stockholm: KTHs Publication Database DiVA
3
ScienceDirect (Elsevier - via Crossref)
3
ScienceDirect (Elsevier)
3
Supélec (Ecole supérieure d'électricité): Publications scientifiques (HAL)
3
Umeå University: Publications (DiVA)
3
more ...