%0 Journal Article %A M. M. Lavrent'ev (Jn.) %T Estimations for solutions of an equation of mixed type %J Matematičeskoe modelirovanie %D 1989 %P 132-138 %V 1 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM_1989_1_11_a12/ %G ru %F MM_1989_1_11_a12