%0 Journal Article %A W. M. Mikulski %T The natural operators lifting projectable vector fields to some fiber product preserving bundles %J Annales Polonici Mathematici %D 2003 %P 261-271 %V 81 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap81-3-4/ %R 10.4064/ap81-3-4 %G en %F 10_4064_ap81_3_4