%0 Journal Article %A V. V. Kozlov %T The Liouville property of invariant measures of completely integrable systems and the Monge--Amp\`ere equation %J Matematičeskie zametki %D 1993 %P 45-52 %V 53 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1993_53_4_a5/ %G ru %F MZM_1993_53_4_a5