Sayaka Imai Yoshinari Kanamori Nobuo Shuto Retrieving Tsunami Digital Library by Use of Mobile Phones. 525-528 2007 conf/ercimdl/2007 ECDL http://dx.doi.org/10.1007/978-3-540-74851-9_59 db/conf/ercimdl/ecdl2007.html#ImaiKS07