citHeader("To cite spa in publications use:")

citEntry(entry = "Article",
  title        = "{spa}: A Semi-Supervised {R} Package for Semi-Parametric Graph-Based Estimation",
  author       = personList(as.person("Mark Culp")),
  journal      = "Journal of Statistical Software",
  year         = "2011",
  volume       = "40",
  number       = "10",
  pages        = "1--29",
  url          = "http://www.jstatsoft.org/v40/i10/",

  textVersion  =
  paste("Mark Culp (2011).",
        "spa: A Semi-Supervised R Package for Semi-Parametric Graph-Based Estimation.",
        "Journal of Statistical Software, 40(10), 1-29.",
        "URL http://www.jstatsoft.org/v40/i10/.")
)

