%0 Journal Article %A A. S. Avilovich %A D. M. Gordievskikh %A V. E. Fedorov %T Issues of unique solvability and approximate controllability of linear fractional order equations with a H\"olderian right-hand side %J Čelâbinskij fiziko-matematičeskij žurnal %D 2020 %P 5-21 %V 5 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CHFMJ_2020_5_1_a0/ %G ru %F CHFMJ_2020_5_1_a0