Speech versus touch: A comparative study of the use of speech and DTMF keypad for navigationKwan Min LeeJennifer Lai2005International Journal of Human-Computer Interaction
Choosing speech or touchtone modality for navigation within a telephony natural language systemJennifer C. LaiKwan Min Lee2002ICSLP 2002
Ubiquitous access to unified messaging: A study of usability and the use of pervasive computingJennifer LaiStella Mitchellet al.2002International Journal of Human-Computer Interaction