1. Reliability Centered Maintenance;Draft Standard;IEC TC 56,1992
2. Mathematical Theory of Reliability;Barlow,1965
3. Optimal interval for preventive maintenance;Klega;Strojírenství,1975
4. CLARA (Cost and Life Appraisal via Reliability Analysis;Galetto,1986
5. Optimal maintenance schedules of systems subject to stochastic failure;Sherif;Microelec. Reliab.,1982