ISSN 0016-7126 (Print)
ISSN 2587-8492 (Online)
| (2001) «Varashev» or «Vorony» Rock as a Demarcation Sign in 1617 of Russian-Schwedish Border, Hydrographic and Cartographic Feature. Geodesy and cartography = Geodeziya i Kartografiya, 62(10), pp. 58-61. (In Russian). |