To cite package 'dvn' in publications use:

Thomas J. Leeper (2013). dvn: Access to The Dataverse Network APIs. R package version 0.3.3.

Corresponding BibTeX entry:

  @Manual{,
    title = {dvn: Access to The Dataverse Network APIs},
    author = {Thomas J. Leeper},
    year = {2013},
    note = {R package version 0.3.3},
  }