To cite package ‘subformula’ in publications use:

Moss J (2022). subformula: Create Subformulas of a Formula. R package version 0.1.0, https://github.com/jonasmoss/subformula.

Corresponding BibTeX entry:

  @Manual{,
    title = {subformula: Create Subformulas of a Formula},
    author = {Jonas Moss},
    year = {2022},
    note = {R package version 0.1.0},
    url = {https://github.com/jonasmoss/subformula},
  }