%0 Journal Article
%A B. Melnikov
%T On $\omega$-languages of special billiards
%J Diskretnaya Matematika
%D 2002
%P 95-108
%V 14
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DM_2002_14_3_a9/
%G ru
%F DM_2002_14_3_a9