To cite package ‘quadprogXT’ in publications use:

Harlow B (2025). quadprogXT: Quadratic Programming with Absolute Value Constraints. R package version 0.0.6, https://github.com/rharlow86/quadprogxt.

Corresponding BibTeX entry:

  @Manual{,
    title = {quadprogXT: Quadratic Programming with Absolute Value
      Constraints},
    author = {Bob Harlow},
    year = {2025},
    note = {R package version 0.0.6},
    url = {https://github.com/rharlow86/quadprogxt},
  }