Content Provider
Aarhus University: Research
77
Wiley Online Library
32
Directory of Open Access Journals: DOAJ Articles
25
KNAW: Research Explorer (Royal Netherlands Academy of Arts and Sciences)
17
Wiley Online Library (via Crossref)
15
DataCite Metadata Store (German National Library of Science and Technology)
14
Norwegian Institute for Nature Research: Brage NINA
13
Springer Nature (via Crossref)
10
University of Groningen research database
10
Unknown
10
PubMed Central (PMC)
9
University of St Andrews: Research Portal
6
University of Tromsø: Munin Open Research Archive
6
Bergen Open Access Publishing (University of Bergen Library)
5
Wageningen UR (University & Research Centre): Digital Library
5
Norwegian Institute for Cultural Heritage Research (NIKU): Brage
4
University of Copenhagen: Research
4
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
3
Polar Research
3
Polar Research (E-Journal)
3
University of St Andrews: Digital Research Repository
3
Aalborg University's Research Portal
2
BioOne Online Journals
2
HighWire Press (Stanford University)
2
Høgskolen i Innlandet: Brage INN
2
Informa (via Crossref)
2
Inland Norway University of Applied Sciences: Brage INN
2
Jultika - University of Oulu repository
2
NTNU Open Archive (Norwegian University of Science and Technology)
2
Open archive Norwegian University of Life Sciences: Brage NMBU
2
PANGAEA - Data Publisher for Earth & Environmental Science
2
Research Institute Nature and Forest: Research outputs
2
Technical University of Denmark: DTU Orbit
2
The University of Queensland: UQ eSpace
2
Aberdeen University Research Archive (AURA)
1
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Bangladesh Journals Online (BanglaJOL)
1
CIRAD: HAL (Agricultural Research for Development)
1
Canadian Science Publishing (via Crossref)
1
DIAL@UCLouvain (Université catholique de Louvain)
1
DIAL@USL-B (Université Saint-Louis, Bruxelles)
1
Digital.CSIC (Spanish National Research Council)
1
ETH Zürich Research Collection
1
Eberhard Karls University Tübingen: Publication System
1
Federation of Finnish Learned Societies: Scientific Journals Online
1
Ghent University Academic Bibliography
1
IRUA - Institutional Repository van de Universiteit Antwerpen
1
Informa
1
Institut Pasteur: HAL
1
KITopen (Karlsruhe Institute of Technologie)
1
more ...