"0.5" . "Mathematics of Control, Signals, and Systems" . . "88640596" . . . "1988" . "Math. Control Signals Syst." . . "Quarterly" . . . . . "1435-568X" . . . . "Mathematics of Control, Signals, and Systems" . . "2011" . . . "0932-4194" . . "782072556" . .