@inproceedings{kim2008computing,
  title={Computing fundamental group of general 3-manifold},
  author={Kim, Junho and Jin, Miao and Zhou, Qian-Yi and Luo, Feng and Gu, Xianfeng},
  booktitle={International Symposium on Visual Computing},
  pages={965--974},
  year={2008},
  organization={Springer}
}