     year <- "in press"
     
     citHeader(paste0("When using the package, we would appreciate it if you would acknowledge your use of TreeSearch and (if you use it) MorphyLib in the article text, and cite Brazeau et al. (", year, "). For example, 'Phylogenetic search was performed using the 
     R package TreeSearch v0.3.0, which uses MorphyLib to handle inapplicable data
     in accordance with Brazeau et al. (", year, ")'.  You might also wish to cite the
     individual software packages using their Zenodo dois."))
     
     vers <- paste("R package version", meta$Version)
     
     citEntry(entry = "Article",
              title = "An algorithm for morphological phylogenetic analysis with inapplicable data",
              author = personList(as.person("Martin D. Brazeau"), as.person("Thomas Guillerme"), as.person("Martin R. Smith")),
              journal = "Systematic Biology",
              year = year,
     
              textVersion =
              paste0("Brazeau, Guillerme & Smith (", year, "). ",
                     "An algorithm for morphological phylogenetic analysis with",
                     " inapplicable data.", 
                     " Systematic Biology.",
                     " doi: 10.1093/sysbio/syy083"))
                     
     citEntry(entry = "Manual",
              title = "TreeSearch: phylogenetic tree search using custom optimality criteria",
              author = personList(as.person("Martin R. Smith")),
              note = vers,
              year = 2018,
              doi = "10.5281/zenodo.1042590",
     
              textVersion =
              paste0("Smith (2018). TreeSearch: phylogenetic tree search using custom optimality criteria. doi: 10.5281/zenodo.1042590"))
              
                     
     citEntry(entry = "Manual",
              title = "MorphyLib: a library for phylogenetic analysis of categorical trait data with inapplicability",
              author = personList(as.person("Martin D. Brazeau"), as.person("Martin R. Smith"), as.person("Thomas Guillerme")),
              year = 2017,
              note = "Version 0.0.1-alpha",
     
              textVersion =
              paste0("Brazeau, Smith & Guillerme (2017). MorphyLib: a library for phylogenetic analysis of categorical trait data with inapplicability. doi: 10.5281/zenodo.815371"))
              
