Content Provider
Directory of Open Access Journals: DOAJ Articles
9,421
ScienceDirect (Elsevier - via Crossref)
6,115
DataCite Metadata Store (German National Library of Science and Technology)
5,698
Cambridge University Press
3,825
Informa (via Crossref)
1,644
ScienceDirect (Elsevier)
1,534
Wiley Online Library (via Crossref)
1,349
Wiley Online Library
1,327
Springer Nature (via Crossref)
1,062
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1,060
Unknown
790
Institut national des sciences de l'Univers: HAL-INSU
774
Natural Environment Research Council: NERC Open Research Archive
770
Université de Nantes: HAL-UNIV-NANTES
724
University of Copenhagen: Research
561
Lund University Publications (LUP)
527
Geological Quarterly
458
Informa
411
Australian National University: ANU Digital Collections
388
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
381
DigiZeitschriften: The German digital journal archive (Göttingen University Library)
374
BORIS (Bern Open Repository and Information System, University of Bern)
367
University of New Brunswick: Centre for Digital Scholarship Journals
366
University of California: eScholarship
360
Canadian Science Publishing (via Crossref)
355
NGU Open Archive (Geological Survey of Norway)
341
GEUS Bulletin (Geological Survey of Denmark and Greenland)
336
eCite UTAS (University of Tasmania)
332
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
318
Cardiff University: ORCA (Online Research @ Cardiff)
306
University of Tasmania: UTas ePrints
279
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
276
Copernicus Publications: E-Journals
275
University of Tromsø: Munin Open Research Archive
272
University of Michigan: Deep Blue
263
Caltech Authors (California Institute of Technology)
248
HAL Sorbonne Université
235
University of Calgary Journal Hosting
223
Canadian Science Publishing
222
Indian Academy of Sciences: Publication of Fellows
222
University of Southampton: e-Prints Soton
220
Apollo - University of Cambridge Repository
218
University of Chicago Press (via Crossref)
218
PANGAEA - Data Publisher for Earth & Environmental Science
206
University of Glasgow: Enlighten - Publications
206
Zenodo
194
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
193
University College London: UCL Discovery
186
Niedersächsisches Online-Archiv NOA
185
Digital.CSIC (Spanish National Research Council)
179
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