Mental Models of a Cellular Phone Menu. Comparing Older and Younger Novice Users.

Martina Ziefle Susanne Bay Mental Models of a Cellular Phone Menu. Comparing Older and Younger Novice Users. 25-37 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3160&spage=25 2004 conf/mhci/2004 Mobile HCI db/conf/mhci/mhci2004.html#ZiefleB04