TY - JOUR AU - E. A. Volkov TI - On differential properties of solutions of the Laplace and Poisson equations on a~parellelepiped and efficient error estimates of the method of nets JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1969 SP - 46 EP - 65 VL - 105 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_1969_105_a4/ LA - ru ID - TM_1969_105_a4 ER -