Elazar Birnbaum Eliezer L. Lozinskii Consistent subsets of inconsistent systems: structure and behaviour. 25-46 2003 15 J. Exp. Theor. Artif. Intell. 1 http://taylorandfrancis.metapress.com/openurl.asp?genre=article&issn=0952-813x&volume=15&issue=1&spage=25 db/journals/jetai/jetai15.html#BirnbaumL03