Laurent Magnien Jean Léon Bouraoui Nadine Vigouroux Mobile Text Input with Soft Keyboards: Optimization by Means of Visual Clues. 337-341 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3160&spage=337 2004 conf/mhci/2004 Mobile HCI db/conf/mhci/mhci2004.html#MagnienBV04