%0 Journal Article %A V. D. Kopchenov %T A method of fictitious domains for the second and third boundary value problems %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1974 %P 119-127 %V 131 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1974_131_a9/ %G ru %F TM_1974_131_a9