%0 Journal Article %A K. Schmuedgen %T Non-Commutative Covariant Differential Calculus on Quantum Spaces and Quantum Groups %J Journal of Lie Theory %D 1991 %P 125-134 %V 1 %N 2 %U http://geodesic.mathdoc.fr/item/JOLT_1991_1_2_a1/ %F JOLT_1991_1_2_a1