%0 Journal Article %A I. V. Gaishun %A V. Q. Hoang %T Control of the spectrum of a two-parameter discrete system %J Differencialʹnye uravneniâ %D 1993 %P 1868-1876 %V 29 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1993_29_11_a2/ %G ru %F DE_1993_29_11_a2