@article{MZM_1988_44_2_a5,
     author = {V. V. Ryzhikov},
     title = {The $\varepsilon$-free {Rokhlin--Halmos} property is not satisfied for the actions of the group~$\mathbb Z^2$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {208--215},
     publisher = {mathdoc},
     volume = {44},
     number = {2},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1988_44_2_a5/}
}