Moroz G (2019). Phonetic fieldwork and experiments with phonfieldwork package. https://CRAN.R-project.org/package=phonfieldwork.

Corresponding BibTeX entry:

  @Manual{,
    title = {Phonetic fieldwork and experiments with phonfieldwork
      package},
    author = {George Moroz},
    year = {2019},
    url = {https://CRAN.R-project.org/package=phonfieldwork},
  }