citHeader("To cite package 'nlme' in publications use:")

desc <- packageDescription("nlme")
year <- sub(".*(2[[:digit:]]{3})-.*", "\\1", desc$Date)
vers <- paste("R package version", desc$Version)

citEntry(entry="Manual",
         title = "nlme: Linear and Nonlinear Mixed Effects Models",
         author = personList(as.person("Jose Pinheiro"),
                             as.person("Douglas Bates"),
                             as.person("Saikat DebRoy"),
                             as.person("Deepayan Sarkar"),
                             as.person("the R Core team")),
         year = year,
         note = vers,

         textVersion =
         paste("Jose Pinheiro, Douglas Bates, Saikat DebRoy, Deepayan Sarkar and the R Core team (",
               year,
               "). nlme: Linear and Nonlinear Mixed Effects Models. ",
               vers, ".", sep=""))