%0 Journal Article %A E. A. Volkov %T On differential properties of solutions of the Laplace and Poisson equations on a~parellelepiped and efficient error estimates of the method of nets %J Informatics and Automation %D 1969 %P 46-65 %V 105 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1969_105_a4/ %G ru %F TRSPY_1969_105_a4