To cite the vsn package in publications use:

  Huber W, von Heydebreck A, Sueltmann H, Poustka A, Vingron M (2002).
  “Variance Stabilization Applied to Microarray Data Calibration and to
  the Quantification of Differential Expression.” _Bioinformatics_, *18
  Suppl. 1*, S96-S104. doi:10.1093/bioinformatics/18.suppl_1.s96
  <https://doi.org/10.1093/bioinformatics/18.suppl_1.s96>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Variance Stabilization Applied to Microarray Data Calibration and to the Quantification of Differential Expression},
    author = {Wolfgang Huber and Anja {von Heydebreck} and Holger Sueltmann and Annemarie Poustka and Martin Vingron},
    doi = {10.1093/bioinformatics/18.suppl_1.s96},
    journal = {Bioinformatics},
    year = {2002},
    volume = {18 Suppl. 1},
    pages = {S96-S104},
  }