%0 Journal Article
%A V. V. Vedyushkina
%T The Fomenko–Zieschang invariants of nonconvex topological billiards
%J Sbornik. Mathematics
%D 2019
%P 310-363
%V 210
%N 3
%U http://geodesic.mathdoc.fr/item/SM_2019_210_3_a1/
%G en
%F SM_2019_210_3_a1