To cite package ‘PROSPER’ in publications use:

  v. Redwitz C, de Mol F (2020). _PROSPER: Simulation of Weed
  Population Dynamics_. R package version 0.3.3,
  <https://CRAN.R-project.org/package=PROSPER>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {PROSPER: Simulation of Weed Population Dynamics},
    author = {Christoph {v. Redwitz} and Friederike {de Mol}},
    year = {2020},
    note = {R package version 0.3.3},
    url = {https://CRAN.R-project.org/package=PROSPER},
  }