To cite package ‘roptions’ in publications use:

Agrawal A (2020). roptions: Option Strategies and Valuation. R package version 1.0.3, https://CRAN.R-project.org/package=roptions.

Corresponding BibTeX entry:

  @Manual{,
    title = {roptions: Option Strategies and Valuation},
    author = {Anurag Agrawal},
    year = {2020},
    note = {R package version 1.0.3},
    url = {https://CRAN.R-project.org/package=roptions},
  }