%0 Journal Article %A Kobza, Jiří %T Quadratic splines smoothing the first derivatives %J Applications of Mathematics %D 1992 %P 149-156 %V 37 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1992.104498/ %R 10.21136/AM.1992.104498 %G en %F 10_21136_AM_1992_104498