Schutte W (2015). SOPIE: Non-Parametric Estimation of the Off-Pulse Interval of a Pulsar. R package version 1.5, https://CRAN.R-project.org/package=SOPIE.

Corresponding BibTeX entry:

  @Manual{,
    title = {SOPIE: Non-Parametric Estimation of the Off-Pulse Interval
      of a Pulsar},
    author = {Willem Daniel Schutte},
    year = {2015},
    note = {R package version 1.5},
    url = {https://CRAN.R-project.org/package=SOPIE},
  }