Hironobu Takagi Tatsuya Ishihara Technology Advances and Standardization Toward Accessible Business Graphics. 426-435 2007 conf/hci/2007-7 HCI (7) http://dx.doi.org/10.1007/978-3-540-73283-9_48 db/conf/hci/hci2007-7.html#TakagiI07