%0 Journal Article %A I. P. Pavlotsky %T The Liouville theorem for weakly relativistic systems %J Doklady Akademii Nauk %D 1975 %P 563-565 %V 224 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_224_3_a17/ %G ru %F DAN_1975_224_3_a17