TY - Journal of Yangtze River Scientific Research Institute A1 - NI Zhi-hui, MOU Ming-yan, WU Li-chun, ZHAO Jian, ZHONG Liang T1 - To Determine the Formula of Sediment Group Settlement Based on Perturbation Theory Y1 - 2017-01-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 6 EP - 11 VL - 34 IS - 1 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20150842 ER -