Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SHIMIZU T.,The development of the dense instrument array system 'KASSEM' and the analysis of observed earthquake waves,Proc. 9th World Conf. Earthquake Engineering,,,1988,8,,137-142,https://cir.nii.ac.jp/crid/1570572699526963456,