Content Provider
Directory of Open Access Journals: DOAJ Articles
6
DataCite Metadata Store (German National Library of Science and Technology)
5
Arctic Portal Library
4
Copernicus Publications: E-Journals
3
PubMed Central (PMC)
3
NTNU Open Archive (Norwegian University of Science and Technology)
2
Niedersächsisches Online-Archiv NOA
2
PANGAEA - Data Publisher for Earth & Environmental Science
2
The University of Manchester: Research Explorer
2
ASM Journals (American Society for Microbiology - via Crossref)
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
Cambridge University Press
1
DataCite
1
HAL Lyon 1 (University Claude Bernard Lyon 1)
1
INSA Lyon HAL (Institut National des Sciences Appliquées)
1
Nicolaus Copernicus University (UMK) Torun: RUM@K
1
Oxford University Press
1
Padua Thesis and Dissertations Archive (Università degli Studi die Padova)
1
Portail HAL - Ecole Centrale de Lyon
1
Springer Nature (via Crossref)
1
University of Calgary Journal Hosting
1
University of Stirling: Stirling Digital Research Repository
1
University of Tromsø: Munin Open Research Archive
1
Université de Lyon: HAL
1
Wageningen UR (University & Research Centre): Digital Library
1
White Rose eTheses Online (Universities Leeds, Sheffield, York)
1