@conference{Liuetal21c,
  title = {Iterative Teaching by Label Synthesis},
  booktitle = {Advances in Neural Information Processing Systems 34 (NeurIPS 2021)},
  pages = {21681--21695},
  editors = {M. Ranzato and A. Beygelzimer and Y. Dauphin and P.S. Liang and J. Wortman Vaughan},
  publisher = {Curran Associates, Inc.},
  month = dec,
  year = {2021},
  author = {Liu, W. and Liu, Z. and Wang, H. and Paull, L. and Sch{\"o}lkopf, B. and Weller, A.},
  url = {https://proceedings.neurips.cc/paper/2021/file/b5488aeff42889188d03c9895255cecc-Paper.pdf},
  month_numeric = {12}
}