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2. Dynkin, E.B. and Yushkevich, A.A., Teoremy i zadachi o protsessakh Markova (Theorems and Problems on Markov Processes), Moscow: Nauka, 1967.
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4. Shiryaev, A.N., Osnovy stokhasticheskoi finansovoi matematiki, tom. 2, Teoriya (Foundations of Stochastic Mathematical Finance, vol. 2, Theory), Moscow: FAZIS, 1998.
5. Chow, Y.S., Robbins, H., and Siegmund, D., Great Expectations: The Theory of Optimal Stopping, Boston: Houghton Mifflin, 1971. Translated under the title Teoriya optimal’nykh pravil ostanovki, Moscow: Nauka, 1977.