1. Kleinrock L (1976) Queuing systems. Wiley, New York
2. Hayes JF (1986) Modeling and analysis of computer communication networks. Plenum Press, New York
3. Kleinrock L, Gale R (1996) Queuing systems. Wiley Interscience publication, New York
4. Gross D, Harris CM (1974) Fundamentals of queueing theory. Wiley, New York
5. Andreadis A, Giambene G (2002) Protocols for high-efficiency wireless networks. Kluwer, New York