%0 Journal Article %A L. A. Lyusternik %T Address at the jubilee session of the Moscow Mathematical Society %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1965 %P 19-27 %V 20 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1965_20_3_a4/ %G en %F RM_1965_20_3_a4