To cite mlt/basefun/variables in publications use:

Hothorn T (2020). “Most Likely Transformations: The mlt Package.” Journal of Statistical Software, 92(1), 1–68. doi:10.18637/jss.v092.i01.

Corresponding BibTeX entry:

  @Article{,
    title = {Most Likely Transformations: The {mlt} Package},
    author = {Torsten Hothorn},
    journal = {Journal of Statistical Software},
    year = {2020},
    volume = {92},
    number = {1},
    pages = {1--68},
    doi = {10.18637/jss.v092.i01},
  }