Content Provider
Unknown
221
University of Calgary Journal Hosting
215
Directory of Open Access Journals: DOAJ Articles
146
DataCite Metadata Store (German National Library of Science and Technology)
91
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
72
Defense Technical Information Center: DTIC Technical Reports database
61
Copernicus Publications: E-Journals
54
LeibnizOpen (The Leibniz Association)
42
Université de Nantes: HAL-UNIV-NANTES
42
Aarhus University: Research
40
Institut national des sciences de l'Univers: HAL-INSU
40
Niedersächsisches Online-Archiv NOA
37
PubMed Central (PMC)
37
Cambridge University Press
32
Canadian Science Publishing (via Crossref)
31
Theses Canada/Thèses Canada (Library and Archives Canada)
27
Wiley Online Library
27
MSpace at the University of Manitoba
24
ScienceDirect (Elsevier - via Crossref)
24
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
20
University of Alberta: Era - Education and Research Archive
18
PANGAEA - Data Publisher for Earth & Environmental Science
16
Springer Nature (via Crossref)
15
MDPI Open Access Publishing
14
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
14
Queen's University, Ontario: QSpace
14
Érudit.org (Université Montréal)
14
Canadian Science Publishing
13
University of Copenhagen: Research
13
Université de Bretagne Occidentale: HAL
12
Memorial University of Newfoundland: Research Repository
10
ScienceDirect (Elsevier)
10
Dalhousie University: DalSpace Institutional Repository
9
University of Tromsø: Munin Open Research Archive
9
uO Research (University of Ottawa - uOttawa)
9
Aix-Marseille Université: HAL
8
HAL Sorbonne Université
8
HighWire Press (Stanford University)
8
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
8
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
8
Université Laval: CorpusUL
8
Arctic Council Repository
7
Cambridge University Press (via Crossref)
7
Ghent University Academic Bibliography
7
Informa (via Crossref)
7
Institut national de la recherche scientifique, Québec: Espace INRS
7
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
7
University of St Andrews: Research Portal
7
University of Tromsø: Septentrio Academic Publishing
7
Aarhus University: OJS at The State and University Library
6
more ...