To cite package ‘lpSolve’ in publications use:

Berkelaar M (2024). lpSolve: Interface to 'Lp_solve' v. 5.5 to Solve Linear/Integer Programs. R package version 5.6.23.9000, https://github.com/gaborcsardi/lpsolve.

Corresponding BibTeX entry:

  @Manual{,
    title = {lpSolve: Interface to 'Lp_solve' v. 5.5 to Solve
      Linear/Integer Programs},
    author = {Michel Berkelaar},
    year = {2024},
    note = {R package version 5.6.23.9000},
    url = {https://github.com/gaborcsardi/lpsolve},
  }