Cristina Sylla Pedro Branco Clara Coutinho Maria Eduarda Coquet Storytelling through drawings: evaluating tangible interfaces for children. 3461-3466 2009 CHI Extended Abstracts http://doi.acm.org/10.1145/1520340.1520503 conf/chi/2009a db/conf/chi/chi2009a.html#SyllaBCC09