全国中文核心期刊
中国科技核心期刊
RCCSE核心期刊
SCD核心期刊
Working vacation queue with closed-down, set-up period and negative customers
XU Zurun, ZHU Yijuan, LUO Haijun
Journal of JIangsu University(Natural Science Eidt . 2012, (2): 244 -248 .  DOI: 10.3969/j.issn.1671-7775.2012.02.024