The phylogeny and relationships of the ratite birds as indicated by DNA-DNA hybridization Notornis, 29 (3), 239-240 G.R. Williams (1982)Article Type: Book ReviewAttachmentDownloadAuthors: Charles G. Sibley and Jon E. Ahlquist. In: Evolution Today, G.G.E. Scudder & J.L. Reveal (eds) . Proceedings of the Second International Congress of Systematic and Evolutionary Biology, pp. 301-335. 1981.