To cite package ‘ChIPComp’ in publications use:

  Li Chen, Chi Wang, Zhaohui S.Qin, Hao Wu (2015): A novel statistical
  method for quantitative comparison of multiple ChIP-seq datasets.
  Bioinformatics, doi:10.1093/bioinformatics/btv094

A BibTeX entry for LaTeX users is

  @Article{,
    title = {A novel statistical method for quantitative comparison of multiple ChIP-seq datasets},
    author = {Li Chen and Chi Wang and Zhaohui S.Qin and Hao Wu},
    year = {2015},
    journal = {Bioinformatics},
    doi = {10.1093/bioinformatics/btv094},
  }