Content Provider
LeibnizOpen (The Leibniz Association)
19
Directory of Open Access Journals: DOAJ Articles
4
Unknown
4
AMUR - Adam Mickiewicz University Repository, Poznan
2
Frontiers: Figshare
2
Polar Research (E-Journal)
2
Aarhus University: Research
1
Akademicka Platforma Czasopism
1
Akademicka Platforma Czasopism (APCZ)
1
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
DataCite Metadata Store (German National Library of Science and Technology)
1
Digital Repository of Scientific Institutes (RCIN)
1
Durham University: Durham Research Online
1
Institut national des sciences de l'Univers: HAL-INSU
1
MDPI Open Access Publishing
1
Norwegian Institute for Nature Research: Brage NINA
1
Polar Research
1
The Repository of the University of Silesia (RE-BUŚ)
1
University of St Andrews: Digital Research Repository
1
University of St Andrews: Research Portal
1
Università degli Studi di Genova: CINECA IRIS
1