1. An Unrecorded Form of the Simplest Type of Dilated Composite Odontome;Tratman;Br. Dent. J,1949
2. Abnormal Cusp on the Occlusal Surface of the Human Premolar;Yumikura;Kohub. Zass,1936
3. Contribution to the Knowledge Concerning the Cone-shaped Supernumerary Cusp in the Center of the Occlusal Surface on Premolars of Japanese;Kato;Nihon Shika Gakukai Zasshi,1937
4. The East Greenland Eskimo Dentition;Pederson,1949
5. Odontome of the Axial Core Type;Lau;Br. Dent. J,1955