To cite package ‘yum’ in publications use:

Peters G (2021). yum: Utilities to Extract and Process 'YAML' Fragments. R package version 0.1.0, https://CRAN.R-project.org/package=yum.

Corresponding BibTeX entry:

  @Manual{,
    title = {yum: Utilities to Extract and Process 'YAML' Fragments},
    author = {Gjalt-Jorn Peters},
    year = {2021},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=yum},
  }