vers <- paste("R package version", meta$Version)

citEntry(entry = "Manual",
        title = "TreeTools: create, modify and analyse phylogenetic trees",
        author = personList(as.person("Martin R. Smith")),
        note = vers,
        year = 2019,
        doi = "10.5281/zenodo.3522725",

        textVersion =
        paste0("Smith (2019). TreeTools: create, modify and analyse phylogenetic trees. doi: 10.5281/zenodo.3522725"))

