To cite "RfEmpImp" in publications use:

  Hong, Shangzhi, et al. "Multiple imputation using chained random
  forests." Preprint, submitted April 30, 2020.
  https://arxiv.org/abs/2004.14823.

A BibTeX entry for LaTeX users is

  @Misc{,
    title = {Multiple imputation using chained random forests},
    author = {Shangzhi Hong and Yuqi Sun and Hanying Li and Henry S. Lynn},
    year = {2020},
    eprint = {2004.14823},
    archiveprefix = {arXiv},
    primaryclass = {stat.ME},
  }