To cite CVXR in publications use:

  Fu A, Narasimhan B, Boyd S (2020). “CVXR: An R Package for
  Disciplined Convex Optimization.” _Journal of Statistical Software_,
  *94*(14), 1-34. doi:10.18637/jss.v094.i14
  <https://doi.org/10.18637/jss.v094.i14>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {{CVXR}: An {R} Package for Disciplined Convex Optimization},
    author = {Anqi Fu and Balasubramanian Narasimhan and Stephen Boyd},
    journal = {Journal of Statistical Software},
    year = {2020},
    volume = {94},
    number = {14},
    pages = {1--34},
    doi = {10.18637/jss.v094.i14},
  }