To cite package distrTeach in publications use:

Ruckdeschel P, Kohl M, Stabla T, Camphausen F (2008). “S4 Classes for Distributions—a manual for packages distr, distrSim, distrTEst, distrEx, distrMod, and distrTeach.” Fraunhofer ITWM, Kaiserslautern, Germany. https://CRAN.R-project.org/package=distrDoc.

Corresponding BibTeX entry:

  @TechReport{,
    author = {P. Ruckdeschel and M. Kohl and T. Stabla and F.
      Camphausen},
    title = {{S4 Classes for Distributions---a manual for packages
      distr, distrSim, distrTEst, distrEx, distrMod, and distrTeach}},
    language = {English},
    institution = {{Fraunhofer ITWM}},
    month = {July},
    year = {2008},
    address = {{Kaiserslautern, Germany}},
    url = {https://CRAN.R-project.org/package=distrDoc},
    vignette =
      {https://CRAN.R-project.org/web/packages/distrDoc/vignettes/distr.pdf},
  }