1. Dunlop MD, Crossan A (2000) Predictive text entry methods for mobile phones. Personal Technol 4(2):134–143
2. James CL, Reischel KM (2001) Text input for mobile devices: comparing model prediction to actual performance, in SIGCHI conference on Human factors in computing systems. ACM Press, Seattle
3. Grover DL, King MT, Kushler CA (1998) Reduced keyboard disambiguating computer I. Tegic Communications, Editor
4. Kushler C (1998) AAC using a reduced keyboard, in echnology and persons with disabilities conference, USA
5. Bellman T, MacKenzie IS (1998) A probabilistic character layout strategy for mobile text entry, in Graphics Interface ‘98. Canadian Information Processing Society, Toronto, pp 168–176