To cite condvis in publications use:

O'Connell M, Hurley CB and Domijan K (2017). “Conditional Visualization for Statistical Models: An Introduction to the condvis Package in R.” Journal of Statistical Software, 81(5), pp. 1–20. doi: 10.18637/jss.v081.i05.

Corresponding BibTeX entry:

  @Article{,
    title = {Conditional Visualization for Statistical Models: An
      Introduction to the {condvis} Package in {R}},
    author = {Mark O'Connell and Catherine B. Hurley and Katarina
      Domijan},
    journal = {Journal of Statistical Software},
    year = {2017},
    volume = {81},
    number = {5},
    pages = {1--20},
    doi = {10.18637/jss.v081.i05},
  }