%0 Journal Article %A V. A. Sadovnichii %A V. V. Dubrovskii %A E. M. Maleko %A A. Yu. Popov %T Correctness of Dorodnitsyn's Method for Approximate Calculation of Eigenvalues in a Class of Boundary Value Problems %J Differencialʹnye uravneniâ %D 2002 %P 471-476 %V 38 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2002_38_4_a4/ %G ru %F DE_2002_38_4_a4