To cite the smatr package please use:

Warton, David I., Duursma, Remko A., Falster, Daniel S. and Taskinen, Sara (2012) smatr 3 - an R package for estimation and inference about allometric lines. Methods in Ecology and Evolution, 3(2), 257-259.

Corresponding BibTeX entry:

  @Article{,
    title = {smatr 3 - an R package for estimation and inference about
      allometric lines},
    author = {David I. Warton and Remko A. Duursma and Daniel S.
      Falster and Sara Taskinen},
    year = {2012},
    volume = {3},
    number = {2},
    pages = {257-259},
    journal = {Methods in Ecology and Evolution},
    doi = {10.1111/j.2041-210X.2011.00153.x},
  }