%0 Journal Article %A V. V. Basov %T Convergence of the normalizing transformation in the critical case when two zero roots of the characteristic equation have a nonprime elementary divisor %J Differencialʹnye uravneniâ %D 1997 %P 1011-1016 %V 33 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1997_33_8_a0/ %G ru %F DE_1997_33_8_a0