@article{MZM_2005_77_3_a1,
     author = {V. G. Kanovei and V. A. Lyubetskii},
     title = {Perfect subsets of invariant {CA-sets}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {334--338},
     publisher = {mathdoc},
     volume = {77},
     number = {3},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2005_77_3_a1/}
}