%0 Journal Article
%A Jan Florek
%T Billiards and the five distance theorem
%J Acta Arithmetica
%D 2009
%P 229-239
%V 139
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/aa139-3-2/
%R 10.4064/aa139-3-2
%G en
%F 10_4064_aa139_3_2