citHeader("To cite the 'rtk' package in publications use:")
year <- sub("-.*", "", meta$Date)
note <- sprintf("R package version %s", meta$Version)

bibentry(bibtype = "Manual",
         title = "rtk: Rarefaction Tool Kit",
         author = c(person("Paul", "Saary"),
                    person("Falk", "Hildebrand")),
         year = year,
         note = note,
         url = "https://cran.r-project.org/package=rtk")

     
