To cite package ‘HIREewas’ in publications use:

  Xiangyu Luo, Can Yang, Yingying Wei (2019) Detection of
  cell-type-specific risk-CpG sites in epigenome-wide association
  studies, Nature Communications, Volume 10, Articel number: 3113.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Detection of cell-type-specific risk-CpG sites in epigenome-wide association studies},
    author = {Xiangyu Luo and Can Yang and Yingying Wei},
    year = {2019},
    note = {Nature Communications, Volume 10, Article number: 3113.},
  }