New transient solution to the M/M/∞ queue with varying arrival and departure rate. - Ragab Omarah Al-Seedy; Fawziah M. Al-Ibraheem (Appl. Math. Comput., 2003)

Queuing with fixed and variable channels considering balking and reneging concepts. - Ragab Omarah Al-Seedy (Appl. Math. Comput., 2004)

A transient solution of the non-truncated queue M/M/2 with balking, and an additional server for longer queues (Krishnamoorthi discipline). - Ragab Omarah Al-Seedy (Appl. Math. Comput., 2004)

A transient solution of queues with variable channel considering balking concept when S. - Ragab Omarah Al-Seedy (Appl. Math. Comput., 2006)

Transient solution of the M/M/c queue with balking and reneging. - Ragab Omarah Al-Seedy; A. A. El-Sherbiny; Shaban A. El-Shehawy; Sherif I. Ammar (Comput. Math. Appl., 2009)

A matrix approach for the transient solution of an M/M/1/N queue with discouraged arrivals and reneging. - Sherif I. Ammar; A. A. El-Sherbiny; S. A. El-Shehawy; Ragab Omarah Al-Seedy (Int. J. Comput. Math., 2012)