%0 Journal Article %A Ikrombek O. Khajiev %T Conditional correctness and approximate solution of boundary value problem for the system of second order mixed-type equations %J Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika %D 2018 %P 231-241 %V 11 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/JSFU_2018_11_2_a12/ %G en %F JSFU_2018_11_2_a12