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) Henning-Ryssov-Nielson,The role of the natural extracellular polymers in the bioflocculation and dewatering of sludge,Vatten,,,1975,31,,33,https://cir.nii.ac.jp/crid/1370288395524871428,