Content Provider
Directory of Open Access Journals: DOAJ Articles
7
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
4
Australian National University: ANU Digital Collections
2
De Gruyter (via Crossref)
2
Digital.CSIC (Spanish National Research Council)
2
Polar Research (E-Journal)
2
Unknown
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
1
Biblioteca Digital de Periódicos da UFPR (Universidade Federal do Paraná)
1
Cambridge University Press
1
DataCite Metadata Store (German National Library of Science and Technology)
1
Electrical Engineering and Power Engineering (EE&PE - E-Journal)
1
Ghent University Academic Bibliography
1
Imperial College London: Spiral
1
Institutional Repository of Leibniz Universität Hannover
1
Natural Environment Research Council: NERC Open Research Archive
1
PubMed Central (PMC)
1
Repositorio Digital Institucional - Universidad de Buenos Aires (RDI UBA)
1
Scientific Periodicals of Ukraine (Ukrainian Research and Academic Network)
1
Université de Nantes: HAL-UNIV-NANTES
1
Vernadsky National Library of Ukraine: DSpace
1
Wiley Online Library
1
Wiley Online Library (via Crossref)
1
idUS - Deposito de Investigación Universidad de Sevilla
1