1. H. Bruneel and B.G. Kim,Discrete-time models for communication systems including ATM. Kluwer Academic Publishers, Boston (1983).
2. M.L. Chaudhry and J.G.C. Templeton,A first course in bulk queues. Wiley, New York (1983).
3. Goswami V. and Mund G.B., Analysis of discrete-timeGI/Geo/1/Nqueue with multiple working vacations.J. Sys. Sci. Sys. Eng.19(2011) 367–384.
4. Goswami V. and Vijaya Laxmi P., Analysis of finite-buffer discrete-time batch-service queue with multiple vacations.Int. J. Inform. Manage. Sci.22(2011) 291–310.
5. Gravey A. and Hébuterne G., Simultaneity in discrete-time single server queues with Bernoulli inputs.Perform. Eval.14(1992) 123–131.