TY - JOUR AU - V. I. Zhukovskii TI - Certain sufficient conditions for stability of the trivial solution of a~system of two differential equations of first order JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1967 SP - 27 EP - 30 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1967_3_a3/ LA - ru ID - IVM_1967_3_a3 ER -