by Feygin, M. V, Ryzhik, V. M
Published in Natural resources research (New York, N.Y.) (01.03.2001)

by Sklyarov, Yu. A., Brichkov, Yu. I., Kotuma, A. I., Fomina, I. V., Feygin, V. M., Lipovetskiy, V. A.
Published in Mapping sciences and remote sensing (01.07.2000)