%0 Journal Article %A V. A. Il'in %A E. I. Moiseev %T 2-D Nonlocal boundary value problem for Poisson's operator in differential and difference variants %J Matematičeskoe modelirovanie %D 1990 %P 139-156 %V 2 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM_1990_2_8_a13/ %G ru %F MM_1990_2_8_a13