%0 Journal Article %A A. O. Gokhman %T Loss of Smoothness in the Theorem on Differentiable Invariants of Coxeter Groups %J Funkcionalʹnyj analiz i ego priloženiâ %D 1994 %P 82-84 %V 28 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1994_28_4_a8/ %G ru %F FAA_1994_28_4_a8