Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SRINILTA SAM-ARNG,Steady Flow of Water through a Two-Layer Soil,Water Res.,,,1969,,,,https://cir.nii.ac.jp/crid/1570291226471120512,https://doi.org/10.1029/wr005i005p01053