<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Spencer, Matthew / Davidson, Elizabeth A. / Barbrook, Adrian C. / Howe, Christopher J. (2004)</hi>: <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">"Phylogenetics of artificial manuscripts"</hi> J. Theor. Biol. 227, 503–511.