A.M. Sergeev1

1 Saint-Petersburg State University of Aerospace Instrumentation (Saint Petersburg, Russia)

N.V. Dorofeev1, A.V. Grecheneva2

1,2 Vladimir State University named after A.G. and N.G. Stoletovs (Vladimir, Russia)

2 Russian State Agrarian University – Moscow Agricultural Academy named after K.A. Timiryazev (Moscow, Russia)