To cite package ‘subplex’ in publications use:

King AA, Rowan T (2026). subplex: Unconstrained Optimization using the Subplex Algorithm. R package version 1.9, https://github.com/kingaa/subplex.

Corresponding BibTeX entry:

  @Manual{,
    title = {subplex: Unconstrained Optimization using the Subplex
      Algorithm},
    author = {Aaron A. King and Tom Rowan},
    year = {2026},
    note = {R package version 1.9},
    url = {https://github.com/kingaa/subplex},
  }