Michael Nunes Saul Greenberg Carman Neustaedter Sharing digital photographs in the home through physical mementos, souvenirs, and keepsakes. 250-260 2008 Conference on Designing Interactive Systems http://doi.acm.org/10.1145/1394445.1394472 conf/ACMdis/2008 db/conf/ACMdis/ACMdis2008.html#NunesGN08