1. Imran, M., Castillo, C., Dias, F., Vieweg, S. 2015. Processing Social Media Messages in Mass Emergency: A Survey, ACM Computing Surveys 47, No. 4, 67.
2. Fujishiro, H., Matsushita, M., Ogasawara, M. 2018. Effective Use of Social Media in Large-Scale Disasters: The Applicability of Information Triage, Socio-Informatics, 6, No.6, 49--63 (in Japanese).
3. Pourebrahim, N., Sultana, S., Edwards, J., Gochanour, A., Mohanty, S. 2019. Understanding communication dynamics on Twitter during natural disasters: A case study of Hurricane Sandy, International Journal of Disaster Risk Reduction, 37, 101176.
4. Middleton, S., Middleton, L., Modafferi, S. 2014. Real-Time Crisis Mapping of Natural Disasters Using Social Media, Social Intelligence and Technology 29, 2, IEEE, 9--17.
5. Sato, S., Imamura F. 2018. The Trend of "#Rescue" in the 2018 Japan Floods: Comparison with the July 2017 Northern Kyushu Floods, the 20th Annual conference of JASDIS, 2--3 (in Japanese).