Ambiguous Classes in the Games µ-Calculus Hierarchy.

André Arnold Luigi Santocanale Ambiguous Classes in the Games µ-Calculus Hierarchy. 70-86 2003 conf/fossacs/2003 FoSSaCS http://link.springer.de/link/service/series/0558/bibs/2620/26200070.htm db/conf/fossacs/fossacs2003.html#ArnoldS03