@article{DAN_1965_160_4_a5,
     author = {V. K. Zakharov and O. V. Sarmanov},
     title = {Consolidation of states in a {Markov} chain and stationary variation of the spectrum},
     journal = {Doklady Akademii Nauk},
     pages = {762--764},
     publisher = {mathdoc},
     volume = {160},
     number = {4},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_160_4_a5/}
}