TY - JOUR AU - E. A. Sevast'yanov TI - Dependence of differential properties of a~function on the speed of its rational approximations in the metrics of $L_p$ JO - Matematičeskie zametki PY - 1974 SP - 79 EP - 90 VL - 15 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1974_15_1_a8/ LA - ru ID - MZM_1974_15_1_a8 ER -