5Servi L D, Finn S G. M/M/1 queue with working vacations (M/M/1/WV) [ J ]. Performance Evaluation,2002,50 (1) :41 -52.
6Wu D A,Takagi H. M/G/I queue with multiple working vacations [ J ]. Performance Evaluation,2006,63 (7) :654 -681.
7Bata Y. Analysis of a GI/M/1 queue with multiple working vacations [ J ]. Operations Research Letters ,2005,33 (2) :201 -209.
8Banik A,Gupta U,Pathak S. On the GI/M/1/N queue with multiple working vacations-analytic analysis and computation [ J ]. Applied Mathematics and Computation,2007,31 (9) :1701 -1710.
9Moshe S, George S J. Stochastic Orders and Their Applications [ M ]. NewYork: Academic Press,2005 : 126 - 128.
10Li Jihong, Tian Nianshuo. Analysis of the discrete time Geo/Geo/1 queue with single working vacation [ J ]. Quality Technology& Quantitative Management,2008,5 ( 1 ) :77 - 89.
