%0 Journal Article %A T. S. Martynova %T Numerical solution of second order elliptical equations with mixed derivatives by effective iterative methods %J Matematičeskoe modelirovanie %D 2008 %P 35-47 %V 20 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM_2008_20_6_a3/ %G ru %F MM_2008_20_6_a3