@article{1177703284,
author = {Blackwell, David and Freedman, David},
title = {The Tail $\sigma$-Field of a Markov Chain and a Theorem of Orey},
journal = {Ann. Math. Statist.},
volume = {35},
number = {4},
year = {1964},
pages = { 1291-1295},
language = {en},
url = {http://dml.mathdoc.fr/item/1177703284}
}
Blackwell, David; Freedman, David. The Tail $\sigma$-Field of a Markov Chain and a Theorem of Orey. Ann. Math. Statist., Tome 35 (1964) no. 4, pp. 1291-1295. http://gdmltest.u-ga.fr/item/1177703284/