1. The Evolution of Flying and Flightless Birds;de,1975
2. Body mass changes and energetics of the kiwis' egg cycle;Calder;Notornis,1977
3. Phylogeny and evolution of ratite birds;Cracraft;Ibis,1974
4. The Mallee-Fowl, The Bird that Builds an Incubator;Frith,1962
5. Energetics of reproduction in birds;King,1973