%0 Journal Article %A I. P. Semenov %T Approximate solution by the method of lines of a~boundary value problem for an equation of elliptic type %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1977 %P 91-99 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1977_11_a11/ %G ru %F IVM_1977_11_a11