Yi Lu Murphey Jacob Crossman ZhiHang Chen Multiple Signal Fault Detection Using Fuzzy Logic. 83-92 http://www.springerlink.com/openurl.asp?genre=article&issn=0302-9743&volume=2718&spage=83 2003 conf/ieaaie/2003 IEA/AIE db/conf/ieaaie/ieaaie2003.html#MurpheyCC03