著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Kalmykova Y.,"Karlfeldt Fedje and S. Yu, ""Total material requiement assessment of phosphorous sources from phosphate ore and urban sinks: Sewage sludge and MSW incineration fly ash",International Journal of Environmeantal Research,,,2015,9,2,561,https://cir.nii.ac.jp/crid/1371975846134577288,