@article{MZM_2006_80_1_a13,
     author = {V. F. Chistyakov},
     title = {On {Some} {Properties} of {Systems
}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {115--118},
     publisher = {mathdoc},
     volume = {80},
     number = {1},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2006_80_1_a13/}
}