TY - JOUR AU - V. I. Zhegalov TI - A problem with normal derivatives in the boundary conditions for a system of differential equations JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 2008 SP - 70 EP - 72 IS - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_2008_8_a6/ LA - ru ID - IVM_2008_8_a6 ER -