creator	Kumahara, Yasuhiro; Iwasa, Yoshiya; Murata, Sho; Goto, Hideaki; Takeuchi, Shun; Ishihara, Yuichiro; Seida, Miki; Nagano, Yoshitomo; Crisis Management Division of Higashi-Hiroshima City;
journal title	Hiroshima journal of school education
volume	Volume 27
date of issued	2021-03-19