TY - Journal of Yangtze River Scientific Research Institute A1 - SHEN Sheng-yu, ZHAO Yuan-ling, CHENG Dong-bing, ZHANG Ping-cang T1 - An Efficient Method of Investigating Slope Collapse by Unmanned Aerial Vehicle Remote Sensing Y1 - 2018-04-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 43 EP - 47 VL - 35 IS - 4 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20170876 ER -