%0 Journal Article %A I. V. Maiorov %T A certain nonlinear system of equations of mixed type %J Doklady Akademii Nauk %D 1968 %P 280-283 %V 183 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_183_2_a8/ %G ru %F DAN_1968_183_2_a8