Content Provider
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
5,352
DataCite Metadata Store (German National Library of Science and Technology)
4,504
Directory of Open Access Journals: DOAJ Articles
3,618
Unknown
3,304
University of Lethbridge Digitized Collections
2,544
PubMed Central (PMC)
1,492
Canadian Science Publishing (via Crossref)
1,386
Wiley Online Library (via Crossref)
961
University of Calgary Journal Hosting
958
PANGAEA - Data Publisher for Earth & Environmental Science
951
Cambridge University Press
916
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
870
ScienceDirect (Elsevier - via Crossref)
870
Memorial University of Newfoundland: Research Repository
862
Wiley Online Library
763
SFU Digitized Collections (Simon Fraser University)
738
Theses Canada/Thèses Canada (Library and Archives Canada)
654
Defense Technical Information Center: DTIC Technical Reports database
645
Springer Nature (via Crossref)
613
Université de Nantes: HAL-UNIV-NANTES
509
University of British Columbia: cIRcle - UBC's Information Repository
480
Copernicus Publications: E-Journals
458
WikiBooks - Open-content textbooks
448
MDPI Open Access Publishing
438
Informa (via Crossref)
432
Canadian Science Publishing
351
Niedersächsisches Online-Archiv NOA
351
HighWire Press (Stanford University)
344
Biodiversity Heritage Library (BHL)
323
National Research Council Canada: NRC Publications Archive
313
University of Victoria (Canada): UVicDSpace
308
LeibnizOpen (The Leibniz Association)
305
SAGE Publications (via Crossref)
302
Érudit.org (Université Montréal)
292
MSpace at the University of Manitoba
289
Arctic Council Repository
285
Hathi Trust Digital Library
281
Cambridge University Press (via Crossref)
277
University of Alberta: Era - Education and Research Archive
272
Dalhousie University: DalSpace Institutional Repository
271
VIURRSpace (Royal Roads University and Vancouver Island University)
260
ScienceDirect (Elsevier)
254
Institut national des sciences de l'Univers: HAL-INSU
250
PRISM - University of Calgary Digital Repository
249
uO Research (University of Ottawa - uOttawa)
243
Carleton University's Institutional Repository
216
Arca (BC's Digital Treasures)
208
University of Toronto: Research Repository T-Space
199
The University of Winnipeg: WinnSpace Repository
198
Washington State University: WSU Libraries Digital Collections
195
more ...