@article{Paepcke2004717, title = "A cost-effective three-in-one personal digital assistant input control", journal = "International Journal of Human-Computer Studies", volume = "60", number = "5-6", pages = "717 - 736", year = "2004", note = "HCI Issues in Mobile Computing", issn = "1071-5819", doi = "DOI: 10.1016/j.ijhcs.2003.12.007", url = "http://www.sciencedirect.com/science/article/B6WGR-4BH64W2-1/2/376044c7215de02c8212677408039e3c", author = "Andreas Paepcke and Qianying Wang and Sheila Patel and Matthew Wang and Susumu Harada" }