Yukiya Koyama
- A Study Of Characteristics Of Short-term Rainfalls In Small Urban River Basins. In: 土木学会論文集 (Doboku Gakkai rombunshū), v. 1997, n. 579 (November 1997). (1997):
- Characteristics Of Floods In Small Urban Rivers. In: 土木学会論文集 (Doboku Gakkai rombunshū), v. 1998, n. 586 (February 1998). (1998):