Content Provider
Canadian Science Publishing (via Crossref)
1,027
Directory of Open Access Journals: DOAJ Articles
644
University of New Brunswick: Centre for Digital Scholarship Journals
623
DataCite Metadata Store (German National Library of Science and Technology)
505
Wiley Online Library (via Crossref)
441
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
438
ScienceDirect (Elsevier - via Crossref)
432
Canadian Science Publishing
352
Cambridge University Press
342
Wiley Online Library
320
Springer Nature (via Crossref)
311
JSTOR (via Crossref)
291
Memorial University of Newfoundland: Research Repository
272
Oxford University Press (via Crossref)
248
Biodiversity Heritage Library (BHL)
239
University of Toronto Press (U Toronto Press - via Crossref)
233
Informa (via Crossref)
232
Unknown
217
SAGE Publications (via Crossref)
193
Cambridge University Press (via Crossref)
192
RePEc (Research Papers in Economics)
172
ScienceDirect (Elsevier)
161
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
122
Memorial University of Newfoundland: Electronic Journals
89
University of Calgary Journal Hosting
86
Zenodo
80
Oxford University Press
79
University of Toronto: Research Repository T-Space
78
Institut national des sciences de l'Univers: HAL-INSU
70
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
62
Informa
61
Université de Nantes: HAL-UNIV-NANTES
61
Dalhousie University: DalSpace Institutional Repository
59
National Research Council Canada: NRC Publications Archive
59
University of Chicago Press (via Crossref)
51
University of Southampton: e-Prints Soton
48
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
47
Johns Hopkins University Press
47
SAGE Publications
47
Digital.CSIC (Spanish National Research Council)
40
Dryad Digital Repository (Duke University)
40
University of the Highlands and Islands: Research Database of UHI
40
The Canadian Field-Naturalist (E-Journal)
36
Natural Environment Research Council: NERC Open Research Archive
34
Frontiers (Publisher)
33
Ovid (via Crossref)
32
UI Press - University of Illinois Press (via Crossref)
31
Magnolia press
30
University of St Andrews: Research Portal
30
Aarhus University: Research
29
more ...