To cite lubridate in publications use:

Matute J, Linsen L (2020). “Hinted Star Coordinates for Mixed Data.” Computer Graphics Forum, 39(1), 117–133. https://onlinelibrary.wiley.com/doi/abs/10.1111/cgf.13666.

Corresponding BibTeX entry:

  @Article{,
    title = {Hinted Star Coordinates for Mixed Data},
    author = {Jose Matute and Lars Linsen},
    journal = {Computer Graphics Forum},
    year = {2020},
    volume = {39},
    number = {1},
    pages = {117--133},
    url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/cgf.13666},
  }