%0 Journal Article
%A H. Sato
%T Schwarzian derivatives of contact diffeomorphisms
%J Lobachevskii journal of mathematics
%D 1999
%P 89-98
%V 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/LJM_1999_4_a4/
%G en
%F LJM_1999_4_a4