To cite package 'hwriterPlus' in publications use:

David J. Scott (2011). hwriterPlus: Extending the hwriter Package. https://r-forge.r-project.org/R/?group_id=1269.

Corresponding BibTeX entry:

  @Manual{,
    title = {hwriterPlus: Extending the hwriter Package},
    author = {David J. Scott},
    year = {2011},
    note = {R package version 1.0},
    url = {https://r-forge.r-project.org/R/?group_id=1269},
  }