To cite survPresmooth in publications use:

López-de-Ullibarri I, Jácome MA (2013). “survPresmooth: An R Package for Presmoothed Estimation in Survival Analysis.” Journal of Statistical Software, 54(11), 1–26. doi: 10.18637/jss.v054.i11.

Corresponding BibTeX entry:

  @Article{,
    title = {{survPresmooth}: An {R} Package for Presmoothed Estimation
      in Survival Analysis},
    author = {Ignacio L{\'o}pez-de-Ullibarri and M. Amalia J{\'a}come},
    journal = {Journal of Statistical Software},
    year = {2013},
    volume = {54},
    number = {11},
    pages = {1--26},
    doi = {10.18637/jss.v054.i11},
  }