@article{TM_1985_169_a5,
     author = {A. N. Kolmogorov},
     title = {A~new metric invariant of transitive dynamical systems and automorphisms of {Lebesgue} spaces},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {94--98},
     publisher = {mathdoc},
     volume = {169},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1985_169_a5/}
}