Content Provider
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
2
DataCite Metadata Store (German National Library of Science and Technology)
1
Directory of Open Access Journals: DOAJ Articles
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
Polar Research
1
Universitat Politècnica de Catalunya (UPC): Theses and Dissertations Online (TDX)
1
Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge
1
Unknown
1