TY - JOUR AU - V. A. Tabueva TI - On the shape of the region of attraction of the null solution of the differential equation $\ddot x=f(x,\,\dot x)$ JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1958 SP - 248 EP - 264 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1958_4_a26/ LA - ru ID - IVM_1958_4_a26 ER -