Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KOBAYASH Noriyuki and MURAKAMI Akira and KIKUCHI Yoshiaki and YOSHITAKE Yoshitaka,Identification of Coefficient of Subgrade Reaction of Multilayers Based on In-situ Horizontal Loading Test of Piles,"Transactions of The Japanese Society of Irrigation, Drainage and Reclamation Engineering",03872335,"The Japanese Society of Irrigation, Drainage and Rural Engineering",2002,2002,222,683-690,https://cir.nii.ac.jp/crid/1390282679520409344,https://doi.org/10.11408/jsidre1965.2002.683