%0 Journal Article %A Yu. N. Zakharyan %A T. N. Fomenko %T Coincidence preservation for a one-parameter family of pairs of Zamfirescu-type multi-valued mappings %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2021 %P 28-34 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2021_1_a4/ %G ru %F VMUMM_2021_1_a4