%0 Journal Article %A B. V. Yusin %T Difference cocycles for~the~highest Pontryagin classes %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1979 %P 191-192 %V 34 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1979_34_4_a26/ %G en %F RM_1979_34_4_a26