%0 Journal Article %A A. S. Makin %T On the Basis Property of a System of Eigenfunctions of a Nonlinear Spectral Problem %J Differencialʹnye uravneniâ %D 2003 %P 612-618 %V 39 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2003_39_5_a3/ %G ru %F DE_2003_39_5_a3