To cite package 'VariantFiltering' in publications use:

  Elurbe, D.M., Mila, M. and Castelo, R. VariantFiltering: filtering of
  coding and non-coding genetic variants 2014.

A BibTeX entry for LaTeX users is

  @Article{,
    author = {Dei M. Elurbe and Montserrat Mila and Robert Castelo},
    title = {VariantFiltering: filtering of coding and non-coding genetic variants},
    journal = {in preparation},
    year = {2014},
  }