Youn-Kyung Lim Erik Stolterman Heekyoung Jung Justin Donaldson Interaction gestalt and the design of aesthetic interactions. 239-254 2007 DPPI http://doi.acm.org/10.1145/1314161.1314183 conf/dppi/2007 db/conf/dppi/dppi2007.html#LimSJD07