To cite logcondens in publications use:

Lutz Duembgen, Kaspar Rufibach (2011). logcondens: Computations Related to Univariate Log-Concave Density Estimation. Journal of Statistical Software, 39(6), 1-28. URL http://www.jstatsoft.org/v39/i06/.

Corresponding BibTeX entry:

  @Article{,
    title = {{logcondens}: Computations Related to Univariate
      Log-Concave Density Estimation},
    author = {Lutz D\"umbgen and Kaspar Rufibach},
    journal = {Journal of Statistical Software},
    year = {2011},
    volume = {39},
    number = {6},
    pages = {1--28},
    url = {http://www.jstatsoft.org/v39/i06/},
  }