1. Godfray, H. C. J. Nature 417, 17–19 (2002.).
2. Sneath, P. H. A. International Code of Nomenclature of Bacteria (International Union of Microbiological Sciences, Washington DC, 1992).
3. International Commission on Zoological Nomenclature. International Code of Zoological Nomenclature, 4th edition (The International Trust for Zoological Nomenclature, London, 1999).