Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) CHEN P. A.,Predicting strength increase of soft soil by lime-fly ash pile,"Proc, 13th Int. Conf. on SMFE",,,1994,2,,1165-1170,https://cir.nii.ac.jp/crid/1570572701722014848,