To cite 'loa' package in publications use:

Karl Ropkins (2018). loa: various plots, options and add-ins for use with lattice. R package version 0.2.44.2.

Markus Loecher, Karl Ropkins (2015). RgoogleMaps and loa: Unleashing R Graphics Power on Map Tiles. Journal of Statistical Software, 63(4), 1-18. URL http://www.jstatsoft.org/v63/i04/.

Karl Ropkins, David C. Carslaw, Said Munir and Haibo Chen (2012). R, lattice and RgoogleMaps: A practical framework for the development of new geovisualizations. Invited paper for Special Session on Statistical Graphics, American Statistical Association (ASA) 2012 Joint Statistical Meeting, San Diego, US, 29 July - 2 August, 2012.

Please cite both 'loa' and R when using 'loa' for data analysis. For R citation, see ‘citation()’

Corresponding BibTeX entries:

  @Manual{,
    title = {loa: various plots, options and add-ins for use with
      lattice.},
    author = {Karl Ropkins},
    year = {2018},
    note = {R package version 0.2.44.2},
  }
  @Article{,
    title = {{RgoogleMaps} and {loa}: Unleashing {R} Graphics Power on
      Map Tiles},
    author = {Markus Loecher and Karl Ropkins},
    journal = {Journal of Statistical Software},
    year = {2015},
    volume = {63},
    number = {4},
    pages = {1--18},
    url = {http://www.jstatsoft.org/v63/i04/},
  }
  @Proceedings{,
    title = {R, lattice and RgoogleMaps: A practical framework for the
      development of new geovisualizations.},
    author = {Karl Ropkins and David C. Carslaw and Said Munir and
      Haibo Chen},
    year = {2012},
    note = {Invited paper for Special Session on Statistical Graphics,
      American Statistical Association (ASA) 2012 Joint Statistical
      Meeting, San Diego, US, 29 July - 2 August, 2012.},
  }