%0 Journal Article
%A V. A. Gritsenko
%A V. V. Nikulin
%T Igusa modular forms and 'the~simplest' Lorentzian Kac--Moody algebras
%J Sbornik. Mathematics
%D 1996
%P 1601-1641
%V 187
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1996_187_11_a1/
%G en
%F SM_1996_187_11_a1