TY - JOUR AU - S. G. Michlin TI - On the difference-variational method for the multidimensional boundary value problems JO - Zapiski Nauchnykh Seminarov POMI PY - 1971 SP - 99 EP - 114 VL - 23 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1971_23_a9/ LA - ru ID - ZNSL_1971_23_a9 ER -