@article{JMLR:v21:20-066,
  author  = {Chengchun Shi and Wenbin Lu and Rui Song},
  title   = {Breaking the Curse of Nonregularity with Subagging --- Inference of the Mean Outcome under Optimal Treatment Regimes},
  journal = {Journal of Machine Learning Research},
  year    = {2020},
  volume  = {21},
  number  = {176},
  pages   = {1--67},
  url     = {http://jmlr.org/papers/v21/20-066.html}
}