Factorization representations in the boundary crossing problems for random walks on a Markov chain. Lotov, V.I.; Orlova, N.G. — 2005 Sibirskij Matematicheskij Zhurnal
Asymptotic expansions for the distribution of the crossing number of a strip by a Markov-modulated random walk. Lotov, V.I.; Orlova, N.G. — 2006 Sibirskij Matematicheskij Zhurnal
Asymptotic expansions for the distribution of the crossing number of a strip by sample paths of a random walk. Lotov, V.I.; Orlova, N.G. — 2004 Sibirskij Matematicheskij Zhurnal