Content Provider
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Arctic Data Center (via DataONE)
588
HighWire Press (Stanford University)
580
Archives ouvertes de Paris-Saclay
576
University of Liège: ORBi (Open Repository and Bibliography)
574
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
561
The University of Melbourne: Digitised Collections
541
Caltech Authors (California Institute of Technology)
525
Frontiers (Publisher)
520
ArXiv.org (Cornell University Library)
508
Biodiversity Heritage Library (BHL)
501
AU Digital Research Archive (American University)
474
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
472
AAAS Resource Center (American Association for the Advancement of Science)
466
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
461
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
459
Università degli Studi di Genova: CINECA IRIS
456
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
449
JSTOR (via Crossref)
443
Utrecht University Repository
427
Oxford University Press (via Crossref)
417
The Royal Society
411
University of Bristol: Bristol Research
406
Université Savoie Mont Blanc: HAL
406
Muséum National d'Histoire Naturelle (MNHM): HAL
405
Institut National de la Recherche Agronomique: ProdINRA
396
The University of Queensland: UQ eSpace
390
Vernadsky National Library of Ukraine: DSpace
383
Max Planck Society: MPG.PuRe
381
Université de Paris: Portail HAL
380
École Polytechnique, Université Paris-Saclay: HAL
370
Springer Nature
361
Macquarie University Research Portal
341
Texas Tech University: TTU DSpace Repository
340
University of East Anglia: UEA Digital Repository
333
NOAA NCEI Environmental Data Archive (via DataONE)
327
University College London: UCL Discovery
323
Apollo - University of Cambridge Repository
322
LSU Digital Commons (Louisiana State University)
318
German Aerospace Center: elib - DLR electronic library
317
Wiley Online Library (via Crossref)
317
Dryad Digital Repository (Duke University)
315
Arctic Portal Library
311
Università degli Studi di Siena: USiena air
306
Magnolia press
303
Ghent University Academic Bibliography
302
Digital Commons University of South Florida (USF)
300
WikiBooks - Open-content textbooks
299
IRIS Università degli Studi di Napoli Federico II
298
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
284
University of Copenhagen: Research
283
more ...