year <- sub("-.*", "", meta$Date)
if(!length(year))
  year <- substr(Sys.Date(),1,4)
vers <- meta$Version
if(is.null(vers))
  vers <- packageVersion("forecast")
vers <- paste("R package version", vers)

citHeader("To cite the weird package in publications, please use:")

bibentry(bibtype = "Manual",
  title  = '{weird: Functions and Data Sets for "That\'s Weird: Anomaly Detection Using R" by Rob J Hyndman}',
  author = c(as.person("Rob J Hyndman")),
  year   = year,
  note   = vers,
  url    = "https://pkg.robjhyndman.com/weird-package/"
)

bibentry(bibtype = "Book",
  title  = "That's Weird: Anomaly Detection Using {R}",
  author = c(as.person("Rob J Hyndman")),
  year   = year,
  note   = "In preparation",
  publisher = "OTexts",
  address = "Melbourne, Australia",
  url    = "https://OTexts.com/weird/"
)
