Sai Rajesh Mahabhashyam Natarajan Gautam On Queues with Markov Modulated Service Rates. 89-113 2005 51 Queueing Syst. 1-2 http://dx.doi.org/10.1007/s11134-005-2158-x db/journals/questa/questa51.html#MahabhashyamG05