TY - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) A1 - ZHANG Lei, WANG Yu, L Sheng-li, MA Zhan-you T1 - Analysis of the M/M/m/k-m preemptive priority queuing system with negative customers Y1 - 2011-11-20 JF - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) JO - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) SP - 105 EP - 111 VL - 46 IS - 11 UR - http://lxbwk.njournal.sdu.edu.cn N1 - ER -