TY - JOUR AU - A. G. Alekhno TI - A~homogeneous Riemann problem with a~coefficient that has a~discontinuity of the second kind JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1990 SP - 29 EP - 34 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1990_2_a2/ LA - ru ID - IVM_1990_2_a2 ER -