Turland, N. J. et al. (eds.) 2018. International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. Regnum Vegetabile 159.
http://pza.sanbi.org/references/turland-n-j-et-al-eds-2018-international-code-nomenclature-algae-fungi-and-plants