Mikhail Moshkov Andrzej Skowron Zbigniew Suraj On Testing Membership to Maximal Consistent Extensions of Information Systems. 85-90 2006 conf/rsctc/2006 RSCTC http://dx.doi.org/10.1007/11908029_10 db/conf/rsctc/rsctc2006.html#MoshkovSS06