%0 Journal Article %A Dong Zhang %T Minimizing Lp-norm among the Functions of Bounded Second Derivatives. %J Manuscripta mathematica %D 1992 %P 341-358 %V 74 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1992__74_2_155700/ %F MM2_1992__74_2_155700