TY - JOUR AU - V. R. Petukhov TI - Functional perturbations of asymptotically and tangentially-asymptotically stable positions of equilibrium JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1966 SP - 93 EP - 97 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1966_2_a12/ LA - ru ID - IVM_1966_2_a12 ER -