%0 Journal Article %A V. V. Ryzhikov %T On the asymmetry of cascades %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1997 %P 154-157 %V 216 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1997_216_a8/ %G ru %F TM_1997_216_a8