TY - Journal of Changjiang River Scientific Research Institute A1 - LI Peng-cheng, HAN Chun, WANG Yue-min, WANG Jia-rong T1 - Improved RAGA-PPC Model and Its Application to River Health Assessment Y1 - 2016-09-25 JF - Journal of Changjiang River Scientific Research Institute JO - Journal of Changjiang River Scientific Research Institute SP - 18 EP - 22 VL - 33 IS - 9 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20150792 ER -