Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MATSUMOTO Takeru and SAWADA Yutaka and SHIMIZU Masayoshi and KAWABATA Toshinori,Improvement of Calculation for Phreatic Lines in Small Earth Dams,"Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering",1882-2789,"The Japanese Society of Irrigation, Drainage and Rural Engineering",2022,90,2,I_259-I_266,https://cir.nii.ac.jp/crid/1390293050603677056,https://doi.org/10.11408/jsidre.90.i_259