%0 Journal Article %A G. A. Gadzhiev %T On the multiparametric spectral theory of a quadratic operator %J Doklady Akademii Nauk %D 1984 %P 1055-1058 %V 275 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1984_275_5_a5/ %G ru %F DAN_1984_275_5_a5