TY  - BOOK
AU  - Kakalik,James S.
AU  - Little,John D.C.
ED  - Research and Development Corporation, 
TI  - Optimal service policy for the M/G/1 queue with multiple classes of arrivals
T2  - The Rand paper series
PY  - 1971///
CY  - Santa Monica, California
PB  - Rand Corporation
KW  - Operations research
N1  - Includes bibliographical references: page 18
ER  -