To cite R/ctl in publications use:

Arends et al, (2016), Correlation Trait Loci (CTL) mapping: phenotype network inference subject to genotype, Journal of Open Source Software, 1(6), 87,<doi:10.21105/joss.00087>

Corresponding BibTeX entry:

  @Article{,
    title = {Correlation Trait Loci {CTL} mapping: phenotype network
      inference subject to genotype},
    author = {Danny Arends and Yang Li and Gudrun A. Brockmann and
      Ritsert C. Jansen and Robert W. Williams and Pjotr Prins},
    journal = {Journal of Open Source Software},
    year = {2016},
    volume = {1},
    issue = {6},
    pages = {87-87},
    doi = {10.21105/joss.00087},
  }