@article{WuHao2003,
  author    = {{Wu, Jia Bang and Hao, Shen Wang}},
  title     = {{On the equality of the adequate stopping time and the coefficient stopping time of $n$ in the $3N+1$ conjecture}},
  journal   = {{J. Huazhong Univ. Sci. Technol. Nat. Sci.}},
  year      = {{2003}},
  volume    = {{31}},
  number    = {{5}},
  pages     = {{114--116}},
  note      = {{MR 2000420}},
}