TY - JOUR AU - A. Ya. Khokhryakov TI - On the stability of a periodic solution of a system of three differential equations JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1963 SP - 134 EP - 139 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1963_2_a15/ LA - ru ID - IVM_1963_2_a15 ER -