1. Ministry of Land, Infrastructure, Transport and Tourism (2018) Study group on flood control functions of dams for more frequent extreme heavy rainfall events
2. Ministry of Land, Infrastructure, Transport and Tourism (2018) Toward the flood control functions of dams and the enhancement of information in preparing for the frequent occurrence of extremely heavy rainfall—Recommendations of the study group on the flood control functions of dams in preparing for the frequent occurrence of extremely heavy rainfall—Reference Material
3. Ministry of Education, Culture, Sports, Science and Technology, Japan Meteorological Agency (2022) Report of working group I of the IPCC sixth assessment report summary for policymaker
4. Ministry of Land, Infrastructure, Transport and Tourism (2021) Act for partial revision of measures for flood damage of specified urban rivers (Act No. 31, 2021)
5. Shimura H (1982) Evaluation of flood control function of paddy fields and paddy fields. J Agricult Civil Eng Soc 50(1):25–29