TY - Journal of Yangtze River Scientific Research Institute A1 - LIU Hai-tao, DONG Yan-ping, PENG Jun, DONG Liang T1 - Discussion on Inversion Ray Path of Electro-magneticComputerized Tomography Y1 - 2015-08-20 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 135 EP - 138 VL - 32 IS - 8 UR - http://ckyyb.crsri.cn N1 - 10.3969/j.issn.1001-5485.2015.08.025 ER -