%0 Journal Article %A Ya. T. Sultanaev %A E. V. Silova %T The Spectral Asymptotics of a Quadratic Pencil of Differential Operators %J Differencialʹnye uravneniâ %D 2003 %P 1062-1067 %V 39 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2003_39_8_a7/ %G ru %F DE_2003_39_8_a7