Slipping and drifting: using older users to uncover pen-based target acquisition difficulties.

Karyn Moffatt Joanna McGrenere Slipping and drifting: using older users to uncover pen-based target acquisition difficulties. 11-18 2007 conf/assets/2007 ASSETS http://doi.acm.org/10.1145/1296843.1296848 db/conf/assets/assets2007.html#MoffattM07