3L P Khoo,S B Tor,J R Li. A Rough Set Approach to the Ordering of Basic Events in a Fault Tree for Fault Diagnosis[J].The International Journal of Advanced Manufacturing Technology, 2001 ( 17):769 -774.
4Khoo L P,Tor S B,Li J R.A rough set approach to the ordering of basic events in a fault tree for fault diagnosis[J].The International Journal of Advanced Manufacturing Technology,2001,17:769-774.