TY - CHAP AU - Duh, H B-L; Tan, G CB; Chen, V H TI - Usability evaluation for mobile device: a comparison of laboratory and field tests T2 - Proceedings of the 8th Conference on Human-Computer Interaction with Mobile Devices and Services; MobileHCI '06 CY - Helsinki, Finland PB - ACM PY - 2006 SP - 181 EP - 186 ER -