Madalina Croitoru Kees van Deemter A Conceptual Graph Approach for the Generation of Referring Expressions. 2456-2461 2007 conf/ijcai/2007 IJCAI http://dli.iiit.ac.in/ijcai/IJCAI-2007/PDF/IJCAI07-395.pdf db/conf/ijcai/ijcai2007.html#CroitoruD07