1. Geomagnetism of Baked Clays and Recent Sediments,1983
2. Correlation of the Pink volcanic ash of the Osaka Group to the Yabakei pyroclastic-flow deposit in central Kyushu;Danhara;Abstracts of Volcanological Society of Japan,1992
3. The Pink volcanic ash of the Osaka Group (OGPK) in Japan: a tentative working standard of young zircon for fission track dating, Part 2 — fission track and KAr dates of the OGPK;Danhara;Fission-track Newsletter,1992
4. Correlation of the Yabakei pyroclastic-flow deposit in central Kyushu to the Pink Volcanic Ash of the Osaka Group in the light of fission track age;Danhara;Journal of Geological Society of Japan,1996
5. Correlation of the Pink volcanic ash of the Osaka Group and O7 volcanic ash of the Kazusa Group to the Yabakei pyroclastic-flow deposit in central Kyushu, Japan — a co-ignimbrite ash erupted from Shishimuta caldera, Part 2;Danhara;Journal of Geological Society of Japan,1996