Smoothly integrating rule-based techniques into a direct manipulation interface builder. - Scott E. Hudson; Andrey K. Yeatts (UIST, 1991)

A Nose Gesture Interface Device: Extending Virtual Realities. - Tyson R. Henry; Andrey K. Yeatts; Scott E. Hudson; Brad A. Myers; Steven Feiner (Presence Teleoperators Virtual Environ., 1992)