@article{DAN_1970_194_5_a10,
     author = {V. V. Petrov and A. S. Uskov},
     title = {Capacities of information systems with feedback and internal noise},
     journal = {Doklady Akademii Nauk},
     pages = {1029--1031},
     publisher = {mathdoc},
     volume = {194},
     number = {5},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1970_194_5_a10/}
}