To cite the SpatialPack package in publications use:

Osorio, F. and Vallejos, R. (2014). SpatialPack: Package for analysis of spatial data. R package version 0.2-3. http://cran.r-project.org/package=SpatialPack

Corresponding BibTeX entry:

  @Manual{,
    title = {SpatialPack: Package for analysis of spatial data},
    author = {{Osorio} and {F.} and {Vallejos} and {R.}},
    year = {2014},
    note = {R package version 0.2-3},
    url = {http://cran.r-project.org/package=SpatialPack},
  }