1. Theories for toll traffic engineering in the USA;Wilkinson;Bell Syst Tech J,1956
2. Combining correlated streams of non-random traffic;Neal;Bell Syst Tech J,1971
3. Loss calculations in certain overflow systems where the holding times in successive groups have different means. ITC-7;Wallström,1973
4. A two moments method for overflow systems with different mean holding times. ITC-15;Schehrer,1997
5. Teletraffic: theory and applications;Akimaru,1993