%0 Journal Article %A V. V. Ryzhikov %A V. I. Dmitriev %T Generalization of the Chevalley and von Neumann problems %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1987 %P 56-57 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1987_6_a10/ %G ru %F VMUMM_1987_6_a10