Source partitioning using phosphate oxygen isotopes and multiple models in a large catchment - Ziteng Wang; Liyan Tian; Changqiu Zhao; Chenjun Du; Jun Zhang; Fuhong Sun; Teklit Zerizghi Tekleab; Rongfei Wei; Pingqing Fu; Daren C. Gooddy; Qingjun Guo (Water Research, 2023)