%0 Journal Article %A Neculai Papaghiuc %T A Ricci flat pseudo-Riemannian metric on the tangent bundle of a Riemannian manifold %J Colloquium Mathematicum %D 2001 %P 227-233 %V 87 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm87-2-8/ %R 10.4064/cm87-2-8 %G en %F 10_4064_cm87_2_8