%0 Journal Article %A V. A. Galaktionov %T A sharp estimate for the support of the unbounded solution of a %J Doklady Akademii Nauk %D 1989 %P 265-268 %V 309 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_309_2_a0/ %G ru %F DAN_1989_309_2_a0