citHeader("When using wordnet in publications, please cite both the wordnet interface, the Jawbone interface, and WordNet itself:")

## R >= 2.8.0 passes package metadata to citation().
if(!exists("meta") || is.null(meta)) meta <- packageDescription("wordnet")

year <- sub("-.*", "", meta$Date)
note <- sprintf("R package version %s.", meta$Version)

citEntry(entry="Manual",
         title = "wordnet: WordNet Interface",
         author = personList(as.person("Ingo Feinerer"),
                             person("Kurt", "Hornik",
                                    email = "Kurt.Hornik@R-project.org")),
         year = year,
         note = note,
         url = "http://CRAN.R-project.org/package=wordnet",
         textVersion = {
             paste("Ingo Feinerer and Kurt Hornik",
                   sprintf("(%s).", year),
                   "wordnet: WordNet Interface.",
                   note,
                   "URL http://CRAN.R-project.org/package=wordnet.")
         },
	 header = "To cite wordnet, the R via Java interface to WordNet, please use:"
)

citEntry(entry="Manual",
         title = "Jawbone Java WordNet API",
         author = personList(as.person("Mike Wallace")),
         year = "2007",
         url = "http://mfwallace.googlepages.com/jawbone.html",
         textVersion = {
             paste("Mike Wallace (2007).",
                   "Jawbone Java WordNet API.",
                   "URL http://mfwallace.googlepages.com/jawbone.html.")
         },
	 header = "To cite Jawbone, the Java interface to WordNet, please use:"
)

citEntry(entry="Book",
         title = "WordNet: An Electronic Lexical Database",
         author = personList(as.person("Christiane Fellbaum")),
         year = "1998",
         publisher = "Bradford Books",
         textVersion = {
             paste("Christiane Fellbaum (1998).", 
                   "WordNet: An Electronic Lexical Database.",
                   "Bradford Books.")
         },
	 header = "To cite WordNet, please use:"
)
