First discovery of fossil ice of 1000–1700 year B.P. in Japan

Minoru Yoshida, Katsuhiro Yamamoto, Kenji Higuchi, Hajime Iida, Tetsuo Ohata, Toshio Nakamura
1990 Journal of Glaciology  
doi:10.1017/s0022143000009527 fatcat:nxim3ldw3rd7xbka4kiaajjvhu