Distribution of Beach and Shallow Bottom Sediments on the Maehama and Mamashitaura Coasts in Niijima Island, Tokyo, Japan. Geographical Review of Japan Vol.58 (Ser.A), No.4, pp.199-215 (in Japanese) 1985
The Association of Japanese Geographers
, The Geological Society of Japan
, Japanese Geomorphological Union
, Japan Society of Engineering Geology
, Japan Association for Quaternary Research