1. Bieler D, Stevenson I. Internet market forecasts: global internet growth 1998–2005: Ovum Report, December 1998.
2. Dumortier P. Shortcut techniques to boost internet throughput. Alcatel Telecommunications Review 1997 (4th Quarter):300–6.
3. How to anticipate the Internet's global diffusion;Rai;Communications of the ACM,1998
4. Applications of queueing theory;Newell,1982
5. Proof of a convexity property of the Erlang B formula;Messerli;Bell System Technical Journal,1972