%0 Conference Paper %B Proceedings of the 9th international ACM SIGACCESS conference on Computers and accessibility, October %D 2007 %T Barrier pointing: using physical edges to assist target acquisition on mobile device touch screens %A Jon Froehlich %A Wobbrock,J.O. %A Kane,S.K. %B Proceedings of the 9th international ACM SIGACCESS conference on Computers and accessibility, October %P 15 - 17 %8 2007/// %G eng