UDC: 
1 Leontev V.A.
2 Maidanich A.I.
3 Strelets E.A.
4 Khalugin E.I.
Year: 
№: 
672
Pages: 
54-56
Citation:
Leontev V.A., 
Maidanich A.I., 
Strelets E.A., 
Khalugin E.I., 
(1996) Electronic Maps and Expert Cartographic Systems. Geodesy and cartography = Geodeziya i Kartografiya, 57(7), pp. 54-56. (In Russian).