%0 Journal Article %A A. E. Troitskaya %T On isomorphity of measure-preserving $\mathbb Z^2$-actions that have isomorphic Cartesian powers %J Fundamentalʹnaâ i prikladnaâ matematika %D 2007 %P 193-212 %V 13 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_2007_13_8_a11/ %G ru %F FPM_2007_13_8_a11