Hidekazu Kasahara, Mikihiko Mori, Masayuki Mukunoki, Michihiko Minoh. Business Model of Mobile Service for Ensuring Students' Safety Both in Disaster and Non-disaster Situations During School Trips. In Zheng Xiang 0001, Iis Tussyadiah, editors, Information and Communication Technologies in Tourism 2014, ENTER 2014, Proceedings of the International Conference in Dublin, Ireland, January 21-24, 2014. pages 101-114, Springer, 2014. [doi]