%0 Journal Article
%A Esmaa Bekkara
%A Charles Frances
%A Abdelghani Zeghib
%T On lightlike geometry: isometric actions, and rigidity aspects
%J Comptes Rendus. Mathématique
%D 2006
%P 317-321
%V 343
%N 5
%I Elsevier
%R 10.1016/j.crma.2006.07.007
%G en
%F CRMATH_2006__343_5_317_0