TY  - JOUR
AU  - Y. Yoshii
TI  - Root Systems Extended by an Abelian Group and their Lie Algebras

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JO  - Journal of Lie Theory
PY  - 2004
SP  - 371
EP  - 394
VL  - 14
IS  - 2
UR  - http://geodesic.mathdoc.fr/item/JOLT_2004_14_2_a2/
ID  - JOLT_2004_14_2_a2
ER  -