%0 Journal Article
%A V. V. Nikulin
%T Reflection groups in Lobachevskii spaces and the denominator identity for Lorentzian Kac--Moody algebras
%J Izvestiya. Mathematics 
%D 1996
%P 305-334
%V 60
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1996_60_2_a3/
%G en
%F IM2_1996_60_2_a3