Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KIMURA Jun'ichi,"Stratigraphy of upper Pleistocene air-fall pyroclastics, Nagano prefecture.",The Quaternary Research (Daiyonki-Kenkyu),04182642,Japan Association for Quaternary Research,1987,25,4,247-263,https://cir.nii.ac.jp/crid/1390001206495676416,https://doi.org/10.4116/jaqua.25.247