TY - JOUR AU - S. V. Shil'man TI - An application of the method of generating functions to the determination of the periodic motions of discontinuous nonlinear systems JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1977 SP - 118 EP - 127 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1977_1_a14/ LA - ru ID - IVM_1977_1_a14 ER -