To cite the R package 'GeoLight' in publications use:

Lisovski, S. and Hahn, S. (2013) GeoLight - processing and analysing light-based geolocation in R. Methods in Ecology and Evolution, 3, 1055-1059

Corresponding BibTeX entry:

  @Article{,
    title = {GeoLight - processing and analysing light-based
      geolocation in R},
    author = {Simeon Lisovski and Steffen Hahn},
    year = {2012},
    journal = {Methods in Ecology and Evolution},
  }