Blackwell optimality in the class of all policies in Markov decision chains with a Borel state space and unbounded rewards. - Arie Hordijk; Alexander Yushkevich (Math. Methods Oper. Res., 1999)

Blackwell optimality in the class of stationary policies in Markov decision chains with a Borel state space and unbounded rewards. - Arie Hordijk; Alexander Yushkevich (Math. Methods Oper. Res., 1999)

Optimal switching problem for countable Markov chains: average reward criterion. - Alexander Yushkevich (Math. Methods Oper. Res., 2001)

Average optimal switching of a Markov chain with a Borel state space. - Alexander Yushkevich; Evgueni Gordienko (Math. Methods Oper. Res., 2002)

Stability estimates in the problem of average optimal switching of a Markov chain. - Evgueni Gordienko; Alexander Yushkevich (Math. Methods Oper. Res., 2003)