%0 Journal Article %A A.J. Tromba %T On an energy function for the Weil-Petersson metric on Teichmüller space. %J Manuscripta mathematica %D 1987 %P 249-260 %V 59 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1987__59_155249/ %F MM2_1987__59_155249