On transience conditions for Markov chains and random walks. Denisov, D. Eh.; Foss, S. G. — 2003 Sibirskij Matematicheskij Zhurnal
On optimality of the FCFS discipline in multiserver queueing systems and networks. Foss, S. G.; Chernova, N. I. — 2001 Sibirskij Matematicheskij Zhurnal
On transience conditions for Markov chains. Foss, S. G.; Denisov, D. Eh. — 2001 Sibirskij Matematicheskij Zhurnal