TY - JOUR AU - D. A. Serkov TI - On a representation of the solvability set in the retention problem JO - Vestnik rossijskih universitetov. Matematika PY - 2020 SP - 290 EP - 298 VL - 25 IS - 131 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VTAMU_2020_25_131_a4/ LA - ru ID - VTAMU_2020_25_131_a4 ER -