1. Barlow, R.E. and Proschan, F. (1975). Statistical Theory of Reliability and Life Testing: Probability Models. Holt, Rinehart and Winston, New York, USA.
2. Birnbaum, Z.W. (1969). On the Improtance of Different Components in a Multi-Component System. Multivariate Analysis II., Academic Press, New York, USA.
3. Fang, S.M. and Wakabayashi, H. (2010). Improvement of Network Reliability based on Government Support. Proceedings of Fourth International Symposium on Transport Network Reliability, Minesoda University, USA.
4. Henley, E.J. and Kumamoto, H. (1981). Relaibility Engineering and Risk Assessment [M]. Prentice-Hall, Inc., Englewood Cliffs, USA.
5. Henley, E.J. and Kumamoto, H. (1992). Probabilistic Risk Assessment: Reliability Engineering, Design and Analysis. Institute of Electrical and Electronics Engineer, New York, USA.