"Akiko Makabe,Keisuke Koba,Chikage Yoshimizu,I.chiro Tayasu,N. O. Ogawa,Naohiko Ohkouchi,Sakae Toyoda,Naohiro Yoshida,Toshi Nagata","Fate of atmospheric nitrate and nitrogen biogeochemical processes in Lake Biwa elucidated by multiple oxygen isotopes","2012 ASLO Aquatic Sciences Meeting",,,,,,2012,July