To cite package ‘minqa’ in publications use:

Bates D, Mullen KM, Nash JC, Varadhan R (2025). minqa: Derivative-Free Optimization Algorithms by Quadratic Approximation. R package version 1.2.8, https://r-forge.r-project.org/projects/optimizer.

Corresponding BibTeX entry:

  @Manual{,
    title = {minqa: Derivative-Free Optimization Algorithms by
      Quadratic Approximation},
    author = {Douglas Bates and Katharine M. Mullen and John C. Nash
      and Ravi Varadhan},
    year = {2025},
    note = {R package version 1.2.8},
    url = {https://r-forge.r-project.org/projects/optimizer},
  }