%0 Journal Article %A Tomáš, Jiří %T Some natural operators on vector fields %J Archivum mathematicum %D 1995 %P 239-249 %V 31 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1995__31_3_a6/ %G en %F ARM_1995__31_3_a6