TY - JOUR AU - V. V. Arestov TI - On extremal properties of the nonnegative trigonometric polynomials JO - Trudy Instituta matematiki i mehaniki PY - 1992 SP - 50 EP - 70 VL - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TIMM_1992_1_a3/ LA - ru ID - TIMM_1992_1_a3 ER -