TY - JOUR AU - A.-R. K. Ramazanov AU - A.-K. K. Ramazanov TI - Approximate solution of a boundary value problem with a discontinuous solution JO - Daghestan Electronic Mathematical Reports PY - 2021 SP - 22 EP - 29 VL - 15 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DEMR_2021_15_a1/ LA - ru ID - DEMR_2021_15_a1 ER -