TY - JOUR AU - Yu. A. Blinkov AU - M. D. Malykh AU - L. A. Sevastianov TI - On differential approximations of difference schemes JO - Izvestiya of Saratov University. Mathematics. Mechanics. Informatics PY - 2021 SP - 472 EP - 488 VL - 21 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ISU_2021_21_4_a5/ LA - ru ID - ISU_2021_21_4_a5 ER -