%0 Journal Article %A M. O. Rahula %T Catastrophe theory and differential geometry %J Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara %D 1984 %P 35-80 %V 16 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTG_1984_16_a1/ %G ru %F INTG_1984_16_a1