TY - Journal of Yangtze River Scientific Research Institute A1 - WEN Hui, LI Feng-ling T1 - Direct Solution to the Critical Depth of I-Type Horseshoe Cross-Section with Flat-Bottom Y1 - 2013-04-07 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 40 EP - 43 VL - 30 IS - 4 UR - http://ckyyb.crsri.cn N1 - 10.3969/j.issn.1001-5485.2013.04.009 ER -