Baptiste Alcalde Ana R. Cavalli Dongluo Chen Davy Khuu David Lee Network Protocol System Passive Testing for Fault Management: A Backward Checking Approach. 150-166 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3235&spage=150 2004 conf/forte/2004 FORTE db/conf/forte/forte2004.html#AlcaldeCCKL04