TY - Journal of Yangtze River Scientific Research Institute A1 - HE Zi-guang, YAO Xiang-long, ZHAO Fa-suo, WANG Ban-qiao, DUAN Zhao T1 - Improved Genetic Expression Programming Applied to Searching for Non-circular Critical Slip Surface of Slope Y1 - 2017-01-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 91 EP - 97 VL - 34 IS - 1 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20150985 ER -