%0 Journal Article %A V. I. Arnol'd %T Invariants and perestroikas of plane fronts %J Informatics and Automation %D 1995 %P 14-64 %V 209 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1995_209_a1/ %G ru %F TRSPY_1995_209_a1