@article{qiu:1997:tpm,
    author = {Qiu, S.-L. and Shen, J.-M.},
     title = {On two problems concerning means},
   journal = {J. Hangzhou Inst. Elec. Engrg.},
    volume = {17},
      year = {1997},
     pages = {1–7},
  language = {Chinese},
      note = {In Chinese}}