1. U.S. Army Research Laboratory, “Robotics collaborative technology alliance.” http://www.arl.army.mil/www/default.cfm?page=392 (2012). [Online; accessed 21-January-2016].
2. From tools to teammates toward the development of appropriate mental models for intelligent robots,;Phillips,2011
3. An integrated assessment of progress in robotic perception and semantic navigation;Lennon,2015
4. Field assessment of multimodal communication for dismounted human-robot teams,;Barber,2015
5. Learning models for following natural language directions in unknown environments