homepages/85/2081 conf/acmidc/WalshDGBFYGCBBJB12 conf/chi/FailsGHI12 conf/acmidc/ChipmanFDG11 conf/chi/WalshDGFGHBF11 conf/chi/WalshDFGGHB11 conf/hci/GuhaDF11 conf/mhci/FailsDG11 conf/acmidc/FailsDG10 conf/acmidc/GuhaDF10 conf/chi/WalshDGFGHBF10 conf/acmidc/DruinFHGGFH09 conf/chi/FailsDG09 conf/acmidc/GuhaDF08 journals/cacm/GuhaDCFSF05 journals/cie/MontemayorDCFG04 journals/firstmonday/DruinBWFGGHLLRRTZ03