TY - JOUR AU - A. V. Bitsadze TI - On structural properties of solutions of hyperbolic systems of partial differential equations of the first order JO - Matematičeskoe modelirovanie PY - 1994 SP - 22 EP - 31 VL - 6 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MM_1994_6_6_a4/ LA - ru ID - MM_1994_6_6_a4 ER -