1. A First Course in Bulk Queues;Chaudhry,1983
2. The non-homogeneous M/G/∞ queue;Foley;Opsearch,1982
3. On the service system MX/G/∞;Holman;European Journal of Operational Research,1983
4. A note on the non-homogeneous M/M/∞ queue;Kambo;Opsearch,1979
5. On the number in the non-homogeneous service system MX(t)/M(t)/∞;Kashyap;Opsearch,1983