A discrete-time priority queue with two-class customers and bulk services. - Jin-Fu Chang; Ywh-Pyng Harn (Queueing Syst. Theory Appl., 1992)

Optimal low-order controller design via 'LQG-like' parametrization. - Ywh-Pyng Harn; Robert L. Kosut (Autom., 1993)