Content Provider
University of St Andrews: Research Portal
6
Wageningen UR (University & Research Centre): Digital Library
6
University of Groningen research database
4
PANGAEA - Data Publisher for Earth & Environmental Science
3
Directory of Open Access Journals: DOAJ Articles
2
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
2
KU Leuven: Lirias
2
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
2
OpenAgrar (OA)
2
University of Pretoria: UPSpace
2
Caltech Authors (California Institute of Technology)
1
Cambridge University Press
1
DataCite Metadata Store (German National Library of Science and Technology)
1
Directory of Open Access Books (DOAB)
1
HighWire Press (Stanford University)
1
MDPI Open Access Publishing
1
Oxford University Press
1
PubMed Central (PMC)
1
Publication Server of Goethe University Frankfurt am Main
1
ScienceDirect (Elsevier - via Crossref)
1
Springer Nature (via Crossref)
1
Texas A&M University Digital Repository
1
Tomsk State University Research Library
1
University of Cape Town: OpenUCT
1
Unknown
1
Wiley Online Library
1
Wiley Online Library (via Crossref)
1
eCite UTAS (University of Tasmania)
1