@article{sc4dasparse4dconvolutionalnetworkfor,
  title = {What and Where: Modeling Skeletons from Semantic and Spatial Perspectives for Action Recognition},
  author = {Lei Shi and Yifan Zhang and Jian Cheng and Hanqing Lu},
  year = {2020},
  eprint = {2004.03259},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2004.03259v2},
}