%0 Journal Article %A Kh. K. Ishkin %T Asymptotics of the spectrum and the regularized trace of higher-order singular differential operators %J Differencialʹnye uravneniâ %D 1995 %P 1658-1668 %V 31 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1995_31_10_a7/ %G ru %F DE_1995_31_10_a7