%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
%U https://jolt.centre-mersenne.org/articles/10.5802/jolt.342/
%R 10.5802/jolt.342
%F JOLT_2004_14_2_a2