To cite package ‘COMPASS’ in publications use:

  Lin L, Ushey K, Finak G (2014). _COMPASS: Combinatorial
  Polyfunctionality Analysis of Single Cells_. R package version
  1.43.0, <https://bioconductor.org/packages/COMPASS>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {COMPASS: Combinatorial Polyfunctionality Analysis of Single Cells},
    author = {Lynn Lin and Kevin Ushey and Greg Finak},
    year = {2014},
    note = {R package version 1.43.0},
    url = {https://bioconductor.org/packages/COMPASS},
  }