To cite RAPTOR in publications use:

Peters, R.L., Balanzategui, D., Hurley, A.G., von Arx, G., Prendin, A.L., Cuny, H.E., Björklund, J., Frank, D.C. and Fonti, P., 2018. RAPTOR: Row and position tracheid organizer in R. Dendrochronologia, 47, pp.10-16.

Corresponding BibTeX entry:

  @Article{,
    title = {RAPTOR: Row and position tracheid organizer in R},
    author = {Richard Peters and Daniel Balanzategui and Alexander
      Gideon Hurley and Georg {von Arx} and Angela Luisa Prendin and
      Henri Cuny and Jesper Bj{\"o}rklund and David Frank and Patrick
      Fonti},
    journal = {Dendrochronologia},
    year = {2018},
    volume = {47},
    pages = {10-16},
    doi = {10.1016/j.dendro.2017.10.003},
    url = {https://doi.org/10.1016/j.dendro.2017.10.003},
  }