%0 Journal Article %A V. E. Fedorov %A D. M. Gordievskikh %A D. Baleanu %A K. Tash %T Criterion of the approximate controllability of a class of degenerate distributed systems with the Riemann–Liouville derivative %J Matematičeskie zametki SVFU %D 2019 %P 41-59 %V 26 %N 2 %U http://geodesic.mathdoc.fr/item/SVFU_2019_26_2_a3/ %G ru %F SVFU_2019_26_2_a3