%0 Journal Article
%A D. V. Gol'tsov
%T Approximability of HNN-Extensions with Central Associated Subgroups by a Root Class of Groups
%J Matematičeskie zametki
%D 2015
%P 665-669
%V 97
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_2015_97_5_a2/
%G ru
%F MZM_2015_97_5_a2