MathSciDoc: An Archive for Mathematician ∫

@inproceedings{ziyuanprobability,
  title={Probability of an Acute Triangle in the Two-dimensional Spaces of Constant Curvature},
  author={Ziyuan Lv, and Yuyu Guo},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160813215159148123192},
}