TY  - BOOK
AU  - Chao, Xiuli  .
TI  - Queuing networks: customers, signals and product form solutions / 
SN  - 0-471-98309-8
U1  - BV 
PY  - 1999///
CY  - New York : 
PB  - John Wiley & Sons, Inc. , 
KW  - Queueing theory
ER  -