TY - JOUR AU - S. N. Kiyasov TI - Some cases of the solvability in a~closed form of singular integral equations and two-dimensional characteristic systems JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 2011 SP - 54 EP - 71 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_2011_4_a5/ LA - ru ID - IVM_2011_4_a5 ER -