%0 Journal Article %A Prato, Giuseppe Da %A Tubaro, Luciano %T Some results about dissipativity of Kolmogorov operators %J Czechoslovak Mathematical Journal %D 2001 %P 685-699 %V 51 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2001__51_4_a2/ %G en %F CMJ_2001__51_4_a2