Content Provider
Directory of Open Access Journals: DOAJ Articles
5,566
ScienceDirect (Elsevier - via Crossref)
2,905
Natural Environment Research Council: NERC Open Research Archive
2,722
Springer Nature (via Crossref)
2,466
Cambridge University Press
2,456
DataCite Metadata Store (German National Library of Science and Technology)
2,125
Unknown
2,062
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1,750
Wiley Online Library
1,454
Université de Nantes: HAL-UNIV-NANTES
1,249
Institut national des sciences de l'Univers: HAL-INSU
1,175
eCite UTAS (University of Tasmania)
1,146
LeibnizOpen (The Leibniz Association)
1,060
Niedersächsisches Online-Archiv NOA
1,052
Wiley Online Library (via Crossref)
1,040
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
956
Informa (via Crossref)
922
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
842
University of California: eScholarship
695
ScienceDirect (Elsevier)
692
University of Tasmania: UTas ePrints
645
Digital.CSIC (Spanish National Research Council)
588
Australian National University: ANU Digital Collections
543
Université Grenoble Alpes: HAL
426
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
389
HAL Sorbonne Université
389
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
347
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
334
Arctic Portal Library
322
Zenodo
318
Frontiers (Publisher)
315
Macquarie University Research Portal
309
Oxford University Press (via Crossref)
303
Informa
301
Université Savoie Mont Blanc: HAL
294
Oxford University Press
284
University of Bristol: Bristol Research
275
Magnolia press
266
University of Southampton: e-Prints Soton
265
Caltech Authors (California Institute of Technology)
264
Università degli Studi di Siena: USiena air
263
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
261
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
257
Utrecht University Repository
253
The University of Queensland: UQ eSpace
240
Università degli Studi di Genova: CINECA IRIS
236
ARPI - Archivio della Ricerca dell'Università di Pisa
232
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
232
Archives ouvertes de Paris-Saclay
230
University of Copenhagen: Research
211
more ...