A study on deaf people supporting systems using cellular phone with Bluetooth in disasters. - Masahiro Fujii; Amir Khosravi Mandana; Takatoshi Takakai; Yu Watanabe; Kazuo Kamata; Atsushi Ito; Hitomi Murakami; Takao Yabe; Yoshikura Haraguchi; Yozo Tomoyasu; Yoshiaki Kakuda (WOWMOM, 2007)