%0 Journal Article
%A Y. Yoshii
%T Root Systems Extended by an Abelian Group and their Lie Algebras
%J Journal of Lie theory
%D 2004
%P 371-394
%V 14
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JLT_2004_14_2_JLT_2004_14_2_a2/
%F JLT_2004_14_2_JLT_2004_14_2_a2