%0 Journal Article
%A N. B. Bezverkhnyaya
%T Description of hyperbolic and nonhyperbolic groups that are certain $HNN$-extensions of free groups
%J Čebyševskij sbornik
%D 2002
%P 17-31
%V 3
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CHEB_2002_3_1_a3/
%G ru
%F CHEB_2002_3_1_a3