@inproceedings{shenghan2009on,
title={On the upper bound of number-theoretic functionf F_f(h)},
author={Shenghan Lu},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160813215155201274075},
year={2009},
}

Shenghan Lu. On the upper bound of number-theoretic functionf F_f(h). 2009. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160813215155201274075.