%0 Journal Article %A R. K. Romanovskii %A S. G. Sadovnichuk %T A~direct method of construction of two-zone solutions of nonlinear equations %J Matematičeskie zametki %D 1999 %P 401-406 %V 66 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1999_66_3_a8/ %G ru %F MZM_1999_66_3_a8