%0 Journal Article %A P. A. Shulimanov %T The upper bound of the best rational approximation of entire functions on the positive semi-axis %J Trudy Instituta matematiki i mehaniki %D 1992 %P 120-127 %V 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TIMM_1992_2_a10/ %G ru %F TIMM_1992_2_a10