Williams, T., Cantrell, R., Briggs, G., Schermerhorn, P. and Scheutz, M. 2013. Grounding Natural Language References to Unvisited and Hypothetical Locations. Proceedings of the AAAI Conference on Artificial Intelligence. 27, 1 (Jun. 2013), 947-953. DOI:https://doi.org/10.1609/aaai.v27i1.8563.