TY - JOUR AU - V. P. Il'in TI - Conditions of validity of inequalities between $L_{p}$-norms of partial derivatives of functions of several variables JO - Informatics and Automation PY - 1968 SP - 205 EP - 242 VL - 96 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_1968_96_a16/ LA - ru ID - TRSPY_1968_96_a16 ER -