views: 6Update PhotoMatthew SimpsonFollowGoogle, Inc., Mountain View, CA, USASign in to view moreShow Academic TrajectoryEgo NetworkD-CoreResearch InterestsAuthor StatisticsExperienceSign in to view moreEducationSign in to view moreBioNonePapers1 papersSortBy YearBy CitationUndo and erase events as indicators of usability problemsDavid Akers,Matthew Simpson,Robin Jeffries,Terry WinogradCHI, pp.659-668, (2009)Cited by41EIBibtexView AllBase InfoPapersPatentsProjects