%0 Journal Article %A N. E. Barabanov %T On the A\u\i zerman problem for a class of third-order %J Doklady Akademii Nauk %D 1994 %P 154-155 %V 334 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1994_334_2_a7/ %G ru %F DAN_1994_334_2_a7