%0 Journal Article %A M. V. Shamolin %T Problems of differential and topological diagnostics. Part 7. Differential diagnostics in some systems of direct and indirect control %J Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ %D 2021 %P 31-45 %V 27 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VSGU_2021_27_3_a3/ %G ru %F VSGU_2021_27_3_a3