TY - JOUR AU - Yu. N. Zakharyan AU - T. N. Fomenko TI - Coincidence preservation for a one-parameter family of pairs of Zamfirescu-type multi-valued mappings JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 2021 SP - 28 EP - 34 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_2021_1_a4/ LA - ru ID - VMUMM_2021_1_a4 ER -