@article{DAN_1975_223_5_a7,
     author = {B. S. Pitskel'},
     title = {On informational futures of amenable groups},
     journal = {Doklady Akademii Nauk},
     pages = {1067--1070},
     publisher = {mathdoc},
     volume = {223},
     number = {5},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_223_5_a7/}
}