%0 Journal Article %A V. A. Tabueva %T On the shape of the region of attraction of the null solution of the differential equation $\ddot x=f(x,\,\dot x)$ %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1958 %P 248-264 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1958_4_a26/ %G ru %F IVM_1958_4_a26