1. Analysis of the dentofacial profile;Downs;Angle Orthod,1956
2. A radiographic cephalometric study of central Australian aborigine;Craven;Angle Orthod,1958
3. A determination of cephalometric norms for the Negro race;Drummond;Am J Orthod,1968
4. Cephalometric study of the dentofacial complex of North Indians;Nanda;Angle Orthod,1969
5. A roentgenographic cephalometric investigation of Norwegian children with normal occlusion;Humerfelt;Scand J Dent Res,1978