%0 Journal Article %A A. M. Elizarov %A A. N. Kalimullina %T Maximization of the lift/drag ratio of airfoils with a turbulent boundary layer: Sharp estimates, approximation, and numerical solutions %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 2009 %P 578-592 %V 49 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_2009_49_3_a15/ %G ru %F ZVMMF_2009_49_3_a15