%0 Journal Article
%A S. Benarab
%A E. S. Zhukovskiy
%A W. Merchela
%T Theorems on perturbations of covering mappings in spaces with a distance and in spaces with a binary relation
%J Trudy Instituta matematiki i mehaniki
%D 2019
%P 52-63
%V 25
%N 4
%U http://geodesic.mathdoc.fr/item/TIMM_2019_25_4_a4/
%G ru
%F TIMM_2019_25_4_a4