Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) FUJII Hideto and KIRI Hirohide and NAKAYA Tetsuo,Current and Water Quality Observation System by Drift Type Buoy with DGPS,"Transactions of The Japanese Society of Irrigation, Drainage and Reclamation Engineering",03872335,"The Japanese Society of Irrigation, Drainage and Rural Engineering",1999,1999,204,757-764,https://cir.nii.ac.jp/crid/1390282679519516160,https://doi.org/10.11408/jsidre1965.1999.757