Tania Di Mascio Rosella Gennari User-Centred Design and Literacy Tools for the Deaf. 13-20 2009 HCI (5) http://dx.doi.org/10.1007/978-3-642-02707-9_2 conf/hci/2009-5 db/conf/hci/hci2009-5.html#MascioG09