%0 Journal Article %A N. N. Ladis %T Topological equivalence of linear actions of $\mathbf R^2$ on $\mathbf R^n$ %J Differencialʹnye uravneniâ %D 1977 %P 443-448 %V 13 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_3_a5/ %G ru %F DE_1977_13_3_a5