%0 Journal Article %A U. Zimmermann %T Invariante Kegel in Cartan-Algebren %J Journal of Lie Theory %D 1991 %P 55-64 %V 1 %N 1 %U https://jolt.centre-mersenne.org/articles/10.5802/jolt.6/ %R 10.5802/jolt.6 %F JOLT_1991_1_1_a5