TY - JOUR AU - I. R. Liflyand TI - Sharp estimates of the Lebesgue constants of partial sums of multiple Fourier series JO - Informatics and Automation PY - 1987 SP - 151 EP - 152 VL - 180 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_1987_180_a88/ LA - ru ID - TRSPY_1987_180_a88 ER -