Suwa, Hiroshi, Kazuyuki Okano, and Tadahiro Kanno. “Forty Years of Debris-Flow Monitoring at Kamikamihorizawa Creek, Mount Yakedake, Japan”. Italian journal of engineering geology and environment (November 30, 2011): 605–613. Accessed April 24, 2024. https://rosa.uniroma1.it/rosa02/engineering_geology_environment/article/view/1321.