%0 Journal Article %A V. S. Rogozhin %A S. P. Danko %T Three approaches to the solution of the generalized Dirichlet and Neumann problems for second order elliptic equations %J Differencialʹnye uravneniâ %D 1971 %P 501-509 %V 7 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1971_7_3_a12/ %G ru %F DE_1971_7_3_a12