%0 Journal Article %A A. G. Kuz'min %T On the behavior of the characteristics of equations of mixed type near the line of degeneracy %J Differencialʹnye uravneniâ %D 1981 %P 2052-2063 %V 17 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1981_17_11_a12/ %G ru %F DE_1981_17_11_a12