To cite ldaPrototype in publications use:

Rieger J (2020). “ldaPrototype: A method in R to get a Prototype of multiple Latent Dirichlet Allocations.” Journal of Open Source Software, 5(51), 2181. doi:10.21105/joss.02181, https://doi.org/10.21105/joss.02181.

Corresponding BibTeX entry:

  @Article{,
    title = {{ldaPrototype}: A method in {R} to get a Prototype of
      multiple Latent Dirichlet Allocations},
    author = {Jonas Rieger},
    journal = {Journal of Open Source Software},
    year = {2020},
    volume = {5},
    number = {51},
    pages = {2181},
    doi = {10.21105/joss.02181},
    url = {https://doi.org/10.21105/joss.02181},
  }