Content Provider
Directory of Open Access Journals: DOAJ Articles
16
Unknown
14
Universidade de Lisboa: repositório.UL
13
University of Alberta: Era - Education and Research Archive
12
DataCite
8
Digital.CSIC (Spanish National Research Council)
8
PubMed Central (PMC)
5
DataCite Metadata Store (German National Library of Science and Technology)
4
MDPI Open Access Publishing
4
Natural Environment Research Council: NERC Open Research Archive
4
Springer Nature (via Crossref)
4
ARCIMÍS (Archivo Climatológico y Meteorológico Institucional - AEMET, Agencia Estatal de Meteorología)
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
3
Institut national des sciences de l'Univers: HAL-INSU
3
ScienceDirect (Elsevier)
3
Université de Nantes: HAL-UNIV-NANTES
3
Archivo Digital UPM (Universidad Politécnica de Madrid)
2
Charles University CU Digital repository
2
Collège de France: HAL
2
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
2
Institut National de la Recherche Agronomique: ProdINRA
2
Instituto Español de Oceanografía: e-IEO
2
OSKAR Bordeaux (Open Science Knowledge ARchive)
2
PANGAEA - Data Publisher for Earth & Environmental Science
2
Pensoft Publishers
2
Revistes Científiques de la Universitat de Barcelona
2
ScienceDirect (Elsevier - via Crossref)
2
Universidade de Coimbra: Estudo Geral
2
Universidade do Algarve: Sapienta
2
University of Bristol: Bristol Research
2
University of California: eScholarship
2
Université de Genève: Archive ouverte UNIGE
2
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
2
BioMed Central
1
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
1
Cambridge University Press
1
Canadian Center of Science and Education: CCSE Journal Online
1
Cardiff University: ORCA (Online Research @ Cardiff)
1
Copernicus Publications: E-Journals
1
Dialnet - Portada de revistas (Universidad de La Rioja)
1
Dipòsit Digital de la Universitat de Barcelona
1
HAL - Université de La Rochelle
1
HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules)
1
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
1
IRUA - Institutional Repository van de Universiteit Antwerpen
1
Informa
1
Justus-Liebig-Universität Giessen: JLUpub
1
MACAU: Open Access Repository of Kiel University
1
Masaryk University Journals
1
Niedersächsisches Online-Archiv NOA
1
more ...