@article{spanastochasticprojectedapproximate,
  title = {SPAN: A Stochastic Projected Approximate Newton Method},
  author = {Xunpeng Huang and Xianfeng Liang and Zhengyang Liu and Yitan Li and Linyun Yu and Yue Yu and Lei LI},
  year = {2020},
  eprint = {2002.03687},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2002.03687v2},
}