%0 Journal Article %A Mikulski, Włodzimierz M. %T The natural operators lifting vector fields to $(J\sp rT\sp *)\sp *$ %J Archivum mathematicum %D 2000 %P 255-260 %V 36 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_2000__36_4_a1/ %G en %F ARM_2000__36_4_a1