1 Portnova О.V.
2 Barabanova N.G.
3 Pebalk A.V.
4 Kardash I.E.
Year: 
№: 
623
Pages: 
32-35
Citation:
Portnova О.V., 
Barabanova N.G., 
Pebalk A.V., 
Kardash I.E., 
(1992) New Protective Layer for Cartographic Product. Geodesy and cartography = Geodezia i Kartografia, 53(6), pp. 32-35. (In Russian).