Perspective change: a system for switching between on-screen views by closing one eye. - Fabian Hemmert; Danijela Djokic; Reto Wettach (AVI, 2008)

Spoken words: activating text-to-speech through eye closure. - Fabian Hemmert; Danijela Djokic; Reto Wettach (CHI Extended Abstracts, 2008)