@article{quadraticupperboundforrecursiveteaching,
  title = {Quadratic Upper Bound for Recursive Teaching Dimension of Finite VC Classes},
  author = {Lunjia Hu and Ruihan Wu and Tianhong Li and Li-Wei Wang},
  year = {2017},
  eprint = {1702.05677},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1702.05677v1},
}