@article{DAN_1958_119_5_a4,
     author = {A. N. Kolmogorov},
     title = {A new metric invariant of transient dynamical systems and automorphisms in {Lebesgue} spaces},
     journal = {Doklady Akademii Nauk},
     pages = {861--864},
     publisher = {mathdoc},
     volume = {119},
     number = {5},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_119_5_a4/}
}