TY - JOUR AU - V. P. Serebryakov TI - Quasiregularity conditions for a singular system of second-order differential equations with oscillating coefficients JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1995 SP - 45 EP - 50 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1995_3_a5/ LA - ru ID - IVM_1995_3_a5 ER -