To cite coalitions in publications use:

Bauer A, Bender A, Klima A, Küchenhoff H (2019). “KOALA: A new paradigm for election coverage.” AStA Adv Stat Anal. https://doi.org/10.1007/s10182-019-00352-6.

Bender A, Bauer A (2018). “coalitions: Coalition probabilities in multi-party democracies.” The Journal of Open Source Software, 3(23). doi:10.21105/joss.00606, https://joss.theoj.org/papers/10.21105/joss.00606.

Corresponding BibTeX entries:

  @Article{,
    author = {Alexander Bauer and Andreas Bender and Andre Klima and
      Helmut Küchenhoff},
    title = {KOALA: A new paradigm for election coverage},
    year = {2019},
    journal = {AStA Adv Stat Anal},
    url = {https://doi.org/10.1007/s10182-019-00352-6},
  }

  @Article{,
    title = {coalitions: Coalition probabilities in multi-party
      democracies},
    author = {Andreas Bender and Alexander Bauer},
    journal = {The Journal of Open Source Software},
    year = {2018},
    month = {mar},
    volume = {3},
    number = {23},
    url = {https://joss.theoj.org/papers/10.21105/joss.00606},
    doi = {10.21105/joss.00606},
  }