Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
29
Digital.CSIC (Spanish National Research Council)
3
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
2
KU Leuven: Lirias
2
Ambiente & Água (E-Journal, Universidade de Taubaté)
1
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
1
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
1
Directory of Open Access Journals: DOAJ Articles
1
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
1
HighWire Press (Stanford University)
1
Old Dominion University: ODU Digital Commons
1
OpenMETU (Middle East Technical University)
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
RI FURG (Repositório da Universidade Federal do Rio Grande)
1
ScienceDirect (Elsevier - via Crossref)
1
University of Bergen: Bergen Open Research Archive (BORA-UiB)
1
Unknown
1
Wageningen UR (University & Research Centre): Digital Library
1
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
1
eCite UTAS (University of Tasmania)
1