%0 Journal Article %A A.-R. K. Ramazanov %A V. G. Magomedova %T Convex interpolation by rational spline functions of class $ C ^ 2 $ %J Daghestan Electronic Mathematical Reports %D 2018 %P 62-67 %V 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DEMR_2018_9_a6/ %G ru %F DEMR_2018_9_a6