1. The Theory of Stochastic Processes;Cox,1965
2. Finite Markov Chains;Kemeny,1976
3. An Introduction to Stochastic Processes and Their Applications;Chiang,1980
4. A Second Course in Stochastic Processes;Karlin,1981
5. A model for high-order Markov chains;Raftery;Journal of the Royal Statistical Society, Series B,1985