1. On a fundamental identity in the theory of semi-Markov processes;Arjas;Adv. Appl. Probab.,1972
2. S. Asmussen, Applied Probability and Queues, Wiley, New York, 1987.
3. A review of open queueing network models of manufacturing systems;Bitran;Queueing Systems,1992
4. Approximating nonrenewal processes by Markov chains: use of super-Erlang (SE) chains;Bitran;Oper. Res.,1993
5. O.J. Boxma, H. Daduna, Sojourn times in queueing networks, in: H. Takagi (Ed.), Stochastic Analysis of Computer and Communication Systems, North-Holland, Amsterdam, 1990, pp. 401–450.