To cite package DeMixT in publications use:

  Zeya Wang, et al (2018). Transcriptome Deconvolution of Heterogeneous
  Tumor Samples with Immune Infiltration. iScience.
  doi:https://doi.org/10.1016/j.isci.2018.10.028

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Transcriptome Deconvolution of Heterogeneous Tumor Samples with Immune Infiltration.},
    author = {Zeya Wang, and et al},
    journal = {iScience},
    year = {2018},
    url = {https://doi.org/10.1016/j.isci.2018.10.028},
  }