%0 Journal Article %A Oleg Yu. Khachay %A Pavel A. Nosov %T On some numerical integration curves for PDE in neighborhood of "butterfly" catastrophe point %J Ural mathematical journal %D 2016 %P 127-140 %V 2 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/UMJ_2016_2_2_a10/ %G en %F UMJ_2016_2_2_a10