Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
7,514
DataCite Metadata Store (German National Library of Science and Technology)
6,197
Unknown
3,741
Directory of Open Access Journals: DOAJ Articles
3,588
University of Copenhagen: Research
3,164
Aarhus University: Research
2,478
ScienceDirect (Elsevier - via Crossref)
1,776
Cambridge University Press
1,497
Copernicus Publications: E-Journals
1,470
Technical University of Denmark: DTU Orbit
1,341
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1,256
LeibnizOpen (The Leibniz Association)
1,201
Springer Nature (via Crossref)
1,149
PubMed Central (PMC)
1,040
Niedersächsisches Online-Archiv NOA
965
Institut national des sciences de l'Univers: HAL-INSU
905
Defense Technical Information Center: DTIC Technical Reports database
867
Université de Nantes: HAL-UNIV-NANTES
834
Wiley Online Library
831
Wiley Online Library (via Crossref)
807
Informa (via Crossref)
599
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
511
ScienceDirect (Elsevier)
442
University of Calgary Journal Hosting
439
Utrecht University Repository
422
University of Southern Denmark Research Portal
413
HighWire Press (Stanford University)
409
Zenodo
360
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
355
University of Liège: ORBi (Open Repository and Bibliography)
339
Lund University Publications (LUP)
337
Aalborg University's Research Portal
332
Digital.CSIC (Spanish National Research Council)
328
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
328
Natural Environment Research Council: NERC Open Research Archive
328
BORIS (Bern Open Repository and Information System, University of Bern)
323
University of Bristol: Bristol Research
312
GEUS Bulletin (Geological Survey of Denmark and Greenland)
306
MDPI Open Access Publishing
303
Biodiversity Heritage Library (BHL)
302
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
301
Université Grenoble Alpes: HAL
294
Apollo - University of Cambridge Repository
280
University of Tromsø: Munin Open Research Archive
280
National Institute of Polar Research Repository, Japan
273
HAL Sorbonne Université
253
University of Bergen: Bergen Open Research Archive (BORA-UiB)
253
University of St Andrews: Research Portal
243
Hathi Trust Digital Library
242
Canadian Science Publishing (via Crossref)
240
more ...