%0 Journal Article %A Andrzej Zajtz %T Some division theorems for vector fields %J Annales Polonici Mathematici %D 1993 %P 19-28 %V 58 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-58-1-19-28/ %R 10.4064/ap-58-1-19-28 %G en %F 10_4064_ap_58_1_19_28