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Directory of Open Access Journals: DOAJ Articles
6
MDPI Open Access Publishing
4
Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya
2
CyberLeninka (Scientific Electronic Library)
1
DataCite Metadata Store (German National Library of Science and Technology)
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
Unknown
1