To cite the R package 'dlnm' in publications use:

Gasparrini A (2011). “Distributed lag linear and non-linear models in R: the package dlnm.”

Journal of Statistical Software,43(8), 1–20. http://www.jstatsoft.org/v43/i08/.

A BibTeX entry for LaTeX users is returned by: toBibtex(citation('dlnm'))

Corresponding BibTeX entry:

@Article{, title = {Distributed lag linear and non-linear models in {R}: the package {dlnm}}, author = {A. Gasparrini}, journal = {Journal of Statistical Software}, year = {2011}, volume = {43}, number = {8}, pages = {1--20}, url = {http://www.jstatsoft.org/v43/i08/}, }