To cite package distrDoc (and other packages of the distr family of packages) in publications use:
Ruckdeschel P, Kohl M, Stabla T, Camphausen F (2006). “S4 Classes for Distributions.” R News, 6(2), 2–6. https://CRAN.R-project.org/doc/Rnews/Rnews_2006-2.pdf.
Corresponding BibTeX entry:
@Article{, title = {S4 Classes for Distributions}, author = {P. Ruckdeschel and M. Kohl and T. Stabla and F. Camphausen}, language = {English}, journal = {R News}, year = {2006}, volume = {6}, number = {2}, pages = {2--6}, month = {May}, url = {https://CRAN.R-project.org/doc/Rnews/Rnews_2006-2.pdf}, pdf = {https://CRAN.R-project.org/doc/Rnews/Rnews_2006-2.pdf}, }