%0 Journal Article %A A. V. Kochergin %T On the absence of mixing in special flows over the rotation of a circle and in flows on a two-dimensional torus %J Doklady Akademii Nauk %D 1972 %P 515-518 %V 205 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1972_205_3_a2/ %G ru %F DAN_1972_205_3_a2