8Xiaojun Zhou,Lifeng Xi.Reliability-centered Predictive Maintenance Scheduling for a Continuously MonitoredSystem Subject to DegradationReliability Engineering and System Safety,2007.
9Barlow R,Hunter L.Optimum preventive maintenance policiesEuropean Journal of Operational Research,1960.
10Lemon G H.Maximum likelihood estimations for thethree parameters Weibull distribution based on cen-sored samplesTechnometrics,1975.