TY - JOUR AU - M. M. Lavrent'ev (Jn.) TI - A~priori smoothness of solutions for number of equations of a~changing type JO - Matematičeskoe modelirovanie PY - 1990 SP - 145 EP - 153 VL - 2 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MM_1990_2_9_a12/ LA - ru ID - MM_1990_2_9_a12 ER -