Yoshinao Takemae Takehiko Ohno Ikuo Yoda Shinji Ozawa Estimating human interruptibility in the home for remote communication. 1397-1402 2006 conf/chi/2006a CHI Extended Abstracts http://doi.acm.org/10.1145/1125451.1125709 db/conf/chi/chi2006a.html#TakemaeOYO06