@article{Ma:2021:SpacetimeBounds,
  author  = {Ma, Li-Ke and Yang, Zeshi and Xin, Tong and Guo, Baining and Yin, KangKang},
  title   = {Learning and Exploring Motor Skills with Spacetime Bounds},
  journal = {Computer Graphics Forum},
  volume  = {40},
  number  = {2},
  pages   = {251-263},
  year    = {2021},
}