To cite R2WinBUGS in publications use:

Sturtz, S., Ligges, U., and Gelman, A. (2005). R2WinBUGS: A Package for Running WinBUGS from R. Journal of Statistical Software, 12(3), 1-16.

Corresponding BibTeX entry:

  @Article{,
    title = {R2WinBUGS: A Package for Running WinBUGS from R},
    author = {Sibylle Sturtz and Uwe Ligges and Andrew Gelman},
    journal = {Journal of Statistical Software},
    year = {2005},
    pages = {1--16},
    number = {3},
    volume = {12},
    url = {http://www.jstatsoft.org},
  }