TY - JOUR AU - A. S. Avilovich AU - D. M. Gordievskikh AU - V. E. Fedorov TI - Issues of unique solvability and approximate controllability of linear fractional order equations with a H\"olderian right-hand side JO - Čelâbinskij fiziko-matematičeskij žurnal PY - 2020 SP - 5 EP - 21 VL - 5 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CHFMJ_2020_5_1_a0/ LA - ru ID - CHFMJ_2020_5_1_a0 ER -