TY  - RPRT
TI  - A new class of gradient estimators for queueing systems with real-time constraints
AU  - Gong, Wei-Bo
AU  - Cassandras, Christos G.
AU  - Kallmes, Michelle H.
AU  - Wardi, Yorai
PY  - 1990
UR  - https://ntrs.nasa.gov/citations/19920028771
ID  - 19920028771
ER  -