著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Shamseddin Musa Ahmed,Assessment of irrigation system sustainability using the Theil-Sen estimator of slope of time series,Sustainability science : official journal of the Integrated Research System for Sustainability Science,18624065,Tokyo : Springer Japan,2014-07,9,3,293-302,https://cir.nii.ac.jp/crid/1521699230440466560,