Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
29
Unknown
13
Zenodo
9
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
5
Directory of Open Access Journals: DOAJ Articles
5
Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual)
5
Australian National University: ANU Digital Collections
4
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
4
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences)
4
Swedish Museum of Natural History: Publications (DiVA)
4
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2
Biodiversity Heritage Library (BHL)
2
Charles University CU Digital repository
2
Dryad Digital Repository (Duke University)
2
HAL Sorbonne Université
2
Hrčak - Portal of scientific journals of Croatia
2
Institut national des sciences de l'Univers: HAL-INSU
2
LSU Digital Commons (Louisiana State University)
2
Lund University Publications (LUP)
2
Magnolia press
2
Padua Research Archive (IRIS - Università degli Studi di Padova)
2
Texas A&M University Digital Repository
2
The University of Texas at Austin: Texas ScholarWorks
2
Universidad de Huelva: Arias Montano
2
University College London: UCL Discovery
2
University of Bristol: Bristol Research
2
Université de Nantes: HAL-UNIV-NANTES
2
theses.fr
2
Aarhus University: Research
1
Archive Ouverte de l'Université Rennes (HAL)
1
BRGM: HAL (Bureau de Recherches Géologiques et Minières)
1
DSpace@IIT Bombay (Indian Institute of Technology)
1
Digital.CSIC (Spanish National Research Council)
1
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
1
Frontiers: Figshare
1
GEUS Bulletin (Geological Survey of Denmark and Greenland)
1
Ghent University Academic Bibliography
1
MDPI Open Access Publishing
1
National Archive of PhD Theses (National Documentation Centre Greece)
1
Nemertes - Institutional Repository of the University of Patras
1
OATAO (Open Archive Toulouse Archive Ouverte - Université de Toulouse)
1
OHIO Open Library (Ohio University)
1
PRISM - University of Calgary Digital Repository
1
Pensoft Publishers
1
Polar Research (E-Journal)
1
Purdue University: e-Pubs
1
Queen's University Belfast Research Portal
1
RID-UnRN - Repositorio Institucional Digital Universidad Nacional de Río Negro
1
Research Portal - University of Namur
1
Revistes Científiques de la Universitat de Barcelona
1
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