%0 Journal Article
%A A. V. Greshnov
%T About estimates of stability of contraction~mappings on~the~first Heisenberg group in the fixed point theorem
%J Vestnik rossijskih universitetov. Matematika
%D 2025
%P 15-27
%V 30
%N 149
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VTAMU_2025_30_149_a1/
%G ru
%F VTAMU_2025_30_149_a1