TY - JOUR AU - L. A. Sakhnovich TI - Extremal Trigonometric and Power Polynomials in Several Variables JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 2004 SP - 88 EP - 91 VL - 38 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_2004_38_1_a9/ LA - ru ID - FAA_2004_38_1_a9 ER -