1. Brand, E. W., J. Premchitt and H. B. Phillipson, 1984. Relationship between rainfall and landslides in Hong Kong. Proceedings, 4th International Symposium on Landslides, Toronto, 377-384.
2. Chiba Prefecture Civil and River Division, 1972. Report of Disaster in Chiba due to Autumn Rain Front of September 6-7, 1971 and Typhoon No. 25 (in Japanese).
3. Farooq, K., R. Orense and I. Towhata, 2003. Response of unsaturated sandy soils under constant shear stress drained condition, Soils and Foundations, 44 (2), 1-13.
4. Fukuoka, M., 1980. Landslides associated with rainfall, Geotechnical Engineering, 11, 1-29.
5. Fukuzono, T., 1990. Recent studies on time prediction of slope failure, Landslide News, 4, 9-12.