The methylCC package is described in:

  Hicks SC, Irizarry RA (2019). “methylCC: technology-independent
  estimation of cell type composition using differentially methylated
  regions.” _Genome Biology_, *20*(261).

A BibTeX entry for LaTeX users is

  @Article{methylCC,
    author = {Stephanie C. Hicks and Rafael A. Irizarry},
    title = {methylCC: technology-independent estimation of cell type composition using differentially methylated regions},
    journal = {Genome Biology},
    year = {2019},
    volume = {20},
    number = {261},
    pubmed = {31783894},
  }