%0 Journal Article %A Janyška, Josef %T Natural vector fields and 2-vector fields on the tangent bundle of a pseudo-Riemannian manifold %J Archivum mathematicum %D 2001 %P 143-160 %V 37 %N 2 %U http://geodesic.mathdoc.fr/item/ARM_2001_37_2_a5/ %G en %F ARM_2001_37_2_a5