%0 Journal Article %A J. R. Sell %T Obstacles to linearization %J Differencialʹnye uravneniâ %D 1984 %P 446-450 %V 20 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1984_20_3_a10/ %G ru %F DE_1984_20_3_a10