Variability and correlation of quantitative characteristics of some promising local and introduced races of silkworm in relation to their use in the breeding programs

by K. R. Arnaudova, D. Grekov, N. Petkov, Ju. D. Bojchuk, A. Z. Zlotin
Published 1997

Regional information system monitoring of agricultural resources with application remote sensing of the Earth

by L. D. Grekov, A. V. Kuzmin, Ju. Verjuzhskij, A. A. Petrov, V. P. Skavronskij
Published 2015