Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HASEGAWA Shuichi,Verification of the Debate on the Takamatsu Crater,Journal of the Japan Society of Engineering Geology,02867737,Japan Society of Engineering Geology,2010,50,6,336-344,https://cir.nii.ac.jp/crid/1390282679072444544,https://doi.org/10.5110/jjseg.50.336