@book{ BA74251882, author = "凌, 祥之 and 国際農林水産業研究センター and International Water Management Institute", title = "Optimal water management under tank cascade system of Sri Lanka", publisher = "Japan International Research Center for Agricultural Sciences", year = "2005", series = "JIRCAS working report", number = "no. 38", URL = "https://ci.nii.ac.jp/ncid/BA74251882" }