To cite survcomp in publications use:

  Schroeder MS, Culhane AC, Quackenbush J, Haibe-Kains B survcomp: an
  R/Bioconductor package for performance assessment and comparison of
  survival models Bioinformatics 27(22): 3206-3208. (2011).

A BibTeX entry for LaTeX users is

  @Article{,
    title = {survcomp: an R/Bioconductor package for performance assessment and comparison of survival models},
    author = {Schroeder MS and Culhane AC and Quackenbush J and Haibe-Kains B},
    journal = {Bioinformatics},
    year = {2011},
    volume = {27(22)},
    pages = {3206-3208.},
  }

  Haibe-Kains B, Desmedt C, Sotiriou C, Bontempi G A comparative study
  of survival models for breast cancer prognostication on microarray
  data: does a single gene beat them all? Bioinformatics 24(19):
  2200-2208. (2008).

A BibTeX entry for LaTeX users is

  @Article{,
    title = {A comparative study of survival models for breast cancer prognostication on microarray data: does a single gene beat them all?},
    author = {Haibe-Kains B and Desmedt C and Sotiriou C and Bontempi G},
    journal = {Bioinformatics},
    year = {2008},
    volume = {24(19)},
    pages = {2200-2208.},
  }

We have invested our time and effort in creating survcomp, we would be
grateful if you could cite it when using it for survival analysis.