To cite package pavo in publications use:

Maia R., Eliason C.M., Bitton P.-P., Doucet S.M. and Shawkey M.D. 2013. pavo: an R Package for the analysis, visualization and organization of spectral data. Methods in Ecology and Evolution. Available online: doi:10.1111/2041-210X.12069

Corresponding BibTeX entry:

  @Article{,
    title = {pavo: an R Package for the analysis, visualization and
      organization of spectral data},
    author = {Rafael Maia and Chad M. Eliason and Pierre-Paul Bitton
      and Stephanie M. Doucet and Matthew D. Shawkey},
    journal = {Methods in Ecology and Evolution},
    year = {2013},
    doi = {10.1111/2041-210X.12069},
  }