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ISSN: 2815-3057
Publisher: Sofia Saima Consult Ltd. 2019-
Country: Bulgaria
URL: www.geolinks.info/geolink ...
Status: Confirmed
Dates: 2019-9999
ISSN: 2603-4271
Publisher: Sofia Saima Consult Ltd 2018-
Country: Bulgaria
URL: www.nordsci.org/proceedin ...
Status: Confirmed
Dates: 2018-9999