citHeader("To cite package 'phmm' in publications use:")
     
year <- sub(".*(2[[:digit:]]{3})-.*", "\\1", meta$Date, perl = TRUE)
vers <- paste("R package version", meta$Version)
     
citEntry(entry="Manual",
        title = "phmm: Proportional Hazards Mixed-effects Models",
        author = personList(as.person("Michael C Donohue"),
                            as.person("Ronghui Xu")),
        year = year,
        note = vers,
        textVersion =
        paste("Michael C Donohue and Ronghui Xu,",
              "(", year, "). phmm: Proportional Hazards Mixed-effects Models. ",
              vers, ".", sep=""))

citEntry(entry="Article",
        title = "Proportional hazards model with random effects",
        author = personList(as.person("Florin Vaida"),
                            as.person("Ronghui Xu")),
        journal = "Statistics in Medicine",
        year = 2000,
        number = "19",
        pages = "3309-3324",
        textVersion =
        paste("Vaida F and Xu R.",
         "(2000).",
         "Proportional hazards model with random effects.", 
         "Statistics in Medicine, 19:3309-3324."))

citEntry(entry="Article",
        title = "Conditional Akaike information under generalized linear and proportional hazards mixed models",
        author = personList(as.person("Michael C Donohue"),
                            as.person("Rosanna Overholser"),
                            as.person("Ronghui Xu"),
                            as.person("Vaoda Florin")),
        journal = "Biometrika",
        year = 2011,
        number = "98, 3",
        pages = "685-700",
        textVersion =
        paste("Donohue, MC, Overholser, R, Xu, R, and Vaida, F.",
         "(January 01, 2011).",
         "Conditional Akaike information under generalized linear and proportional hazards mixed models.",
         "Biometrika, 98, 3, 685-700."))