%0 Journal Article %A A. P. Makhmudov %T The property of being an unconditional basis of systems of eigenfunctions of certain quasilinear operator equations %J Differencialʹnye uravneniâ %D 1978 %P 1262-1271 %V 14 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1978_14_7_a13/ %G ru %F DE_1978_14_7_a13