%0 Journal Article %A M. P. Belyanin %T Numerical-asymptotic solution of a nonstationary singularly perturbed problem from the theory of semiconductor devices %J Differencialʹnye uravneniâ %D 1985 %P 1436-1440 %V 21 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1985_21_8_a18/ %G ru %F DE_1985_21_8_a18