%0 Journal Article %A Canarutto, D. %T Generalized densities and distributional adjoints of natural operators. %J Rendiconti del seminario matematico %D 2001 %P 243-252 %V 59 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RSM_2001__59_4_116629/ %G en %F RSM_2001__59_4_116629