1. R.G. Blumenthal and R.K. Getoor, Markov Processes and Potential Theory, Academic Press, New York, 1968.
2. K.L.Chung, M.Rao. On existence of a dual process. Matematisk institut Aarhus Universitet, 1978, Preprint N 25.
3. C.Dellacherie and P.-A.Meyer, Probabilités et Potentiel, (2ième édition); Chapitres I–IV, 1975; Chapitres V–VIII, 1980, Chapitres IX–XI, 1983; Chapitres XII–XVI, 1987, Hermann, Paris.
4. J.L. Doob. Stochastic processes. 1953, J.Wiley, New York.
5. E.B. Dynkin, Initial and final behavior of Markov process trajectories. Uspechi matematicheskih nauk, 26:4 (1971), 153–172. English translation: Russ. Math. Surv. 26:4 (1971), 165–185.