1. The origin of races;Coon,1963
2. Change during childhood and youth in facial depth from integumental profile points to a line through bregma and sellion;DeKock;Am. J. Orthodontics,1968
3. The adaptive chin;DuBrul,1954
4. Über die Beanspruchung and den Aufbau des Menschlichen Unterkiefers and die Meehanische Bedeutung des Kinnes;Grunewald;Arch. Anthropol.,1928
5. Up from the ape;Hooton,1946