TY - JOUR AU - N. K. Kulikov TI - A~new method for solving linear and nonlinear total differential equations with variable coefficients. Determination of periodic solutions JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1958 SP - 140 EP - 152 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1958_4_a15/ LA - ru ID - IVM_1958_4_a15 ER -