Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
2
Universidad de Las Palmas de Gran Canaria: Acceda
2
Unknown
2
CMRE Open Library (NATO STO Centre for Maritime Research and Experimentation
1
DataverseNO
1
Digital.CSIC (Spanish National Research Council)
1
Directory of Open Access Journals: DOAJ Articles
1
NIOZ Dataverse (Royal Netherlands Institute for Sea Research)
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
University of Oregon Scholars' Bank
1
University of the Highlands and Islands: Research Database of UHI
1