%0 Journal Article
%T The Poncelet grid and the billiard in an ellipse
%A M. Levi
%A S. Tabachnikov
%J Mathematics
%D 2005
%I arXiv
%X We deduce a recent theorem by R. Schwartz on the structure of the so-called Poncelet grid from complete integrability of the billiard in an ellipse
%U http://arxiv.org/abs/math/0511009v1