@article{1102995584, author = {Port, Sidney C.}, title = {Ratio limit theorems for Markov chains.}, journal = {Pacific J. Math.}, volume = {15}, number = {4}, year = {1965}, pages = { 989-1017}, language = {en}, url = {http://dml.mathdoc.fr/item/1102995584} }
Port, Sidney C. Ratio limit theorems for Markov chains.. Pacific J. Math., Tome 15 (1965) no. 4, pp. 989-1017. http://gdmltest.u-ga.fr/item/1102995584/