@article{JMLR:v23:20-316,
  author  = {Derek Driggs and Jingwei Liang and Carola-Bibiane Schönlieb},
  title   = {On Biased Stochastic Gradient Estimation},
  journal = {Journal of Machine Learning Research},
  year    = {2022},
  volume  = {23},
  number  = {24},
  pages   = {1--43},
  url     = {http://jmlr.org/papers/v23/20-316.html}
}