TY - JOUR AU - G. F. Fedoroff TI - Properties of second-order matrices and their application to the quadratures of certain systems of differential equations JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1958 SP - 217 EP - 224 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1958_3_a27/ LA - ru ID - IVM_1958_3_a27 ER -