%0 Journal Article %A Yu. V. Chekanov %T Critical Points of Quasi-Functions and Generating Families of Legendrian Manifolds %J Funkcionalʹnyj analiz i ego priloženiâ %D 1996 %P 56-69 %V 30 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1996_30_2_a3/ %G ru %F FAA_1996_30_2_a3