Govindan, A. , and Marimuthu, N. . "An $M^{[X]}/G(a,b)/1$ queue with unreliable server, re-service on server's decision, balking and Bernoulli vacation schedule under multiple vacation policy", Journal of Mathematical Modeling, 6, 2, 2018, 213-238. doi: 10.22124/jmm.2018.10344.1156