Text correction in pen-based computers: an empirical comparison of methods. - Tedde van Gelderen; Anthony Jameson; Arne L. Duwaer (INTERCHI Adjunct Proceedings, 1993)

Usability laboratories at Philips: supporting research, development, and design for consumer and professional products. - Govert de Vries; Tedde van Gelderen; Fred Brigham (Behav. Inf. Technol., 1994)