Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) FURUMAI Hiroaki and TANIGUCHI Yoshio,Nitrification Activities of Streambed Biofilms and Sediments at Rapids and a Pool,ENVIRONMENTAL SYSTEMS RESEARCH,0915-0390,Japan Society of Civil Engineers,1995,23,,488-493,https://cir.nii.ac.jp/crid/1390282679738235904,https://doi.org/10.2208/proer1988.23.488