G. Roberts
发表
Joyce H. D. M. Westerink,
M. van der Korst,
G. Roberts,
1998,
CHI Conference Summary.
G. Roberts,
2002,
VTS.
Bozena Kaminska,
Linda S. Milor,
Jérôme Wojcik,
1996,
VTS.
Russel L. Winder,
M. Wei,
G. Roberts,
1993,
OOPS Messenger.