To cite emil in publications use:

B├Ącklin CL, Gustafsson MG (2018). “Developer-Friendly and Computationally Efficient Predictive Modeling without Information Leakage: The emil Package for R.” Journal of Statistical Software, 85(13), 1–30. doi: 10.18637/jss.v085.i13.

Corresponding BibTeX entry:

  @Article{,
    title = {Developer-Friendly and Computationally Efficient
      Predictive Modeling without Information Leakage: The {emil}
      Package for {R}},
    author = {Christofer L. B{\"a}cklin and Mats G. Gustafsson},
    journal = {Journal of Statistical Software},
    year = {2018},
    volume = {85},
    number = {13},
    pages = {1--30},
    doi = {10.18637/jss.v085.i13},
  }