Juan Carlos Nieves Mauricio Osorio Ulises Cortés Semantics for Possibilistic Disjunctive Programs. 315-320 2007 conf/lpnmr/2007 LPNMR http://dx.doi.org/10.1007/978-3-540-72200-7_32 db/conf/lpnmr/lpnmr2007.html#NievesOC07