%0 Journal Article %A H. Boseck %T On Algebraic and Semialgebraic Groups and Semigroups %J Journal of Lie Theory %D 1993 %P 221-230 %V 3 %N 2 %U http://geodesic.mathdoc.fr/item/JOLT_1993_3_2_a5/ %F JOLT_1993_3_2_a5