Computer vision assisted semi-automatic virtual reality calibration. - Won S. Kim; Donald B. Gennery; Eugene C. Chalfant (ICRA, 1997)

NASA Robotics Education: Inspiring the Next Generation of Explorers. - Catherine D. D. Bowman; Stephenie H. Lievense; Edward W. Tunstel; Eugene C. Chalfant; Jeffrey S. Norris (Intell. Autom. Soft Comput., 2007)