Content Provider
LeibnizOpen (The Leibniz Association)
19
Directory of Open Access Journals: DOAJ Articles
8
Copernicus Publications: E-Journals
6
DataCite Metadata Store (German National Library of Science and Technology)
2
Hindawi Publishing Corporation
2
NILU – Norwegian Institute for Air Research: NILU Brage
2
Unknown
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Archives ouvertes de Paris-Saclay
1
Arctic Portal Library
1
Cologne University: KUPS
1
MDPI Open Access Publishing
1
Niedersächsisches Online-Archiv NOA
1
Seoul National University: S-Space
1
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
1
University of Bergen: Bergen Open Research Archive (BORA-UiB)
1
University of Potsdam: publish.UP
1
Université de Nantes: HAL-UNIV-NANTES
1