To cite package 'ipdw' in publications use:

Stachelek J (2023). ipdw: spatial interpolation by Inverse Path Distance Weighting.. R package version 2.0-0, https://cran.r-project.org/package=ipdw.

Corresponding BibTeX entry:

  @Manual{,
    title = {ipdw: spatial interpolation by Inverse Path Distance
      Weighting.},
    author = {Jemma Stachelek},
    year = {2023},
    note = {R package version 2.0-0},
    url = {https://cran.r-project.org/package=ipdw},
  }