Chitta Baral Tran Cao Son Enrico Pontelli Modeling Multi-agent Domains in an Action Languages: An Empirical Study Using . 409-415 2009 LPNMR http://dx.doi.org/10.1007/978-3-642-04238-6_35 conf/lpnmr/2009 db/conf/lpnmr/lpnmr2009.html#BaralSP09