1. Mandibular Growth and Third Molar Impaction;Björk;Acta Odont. Scand,1956
2. Study of Impacted Teeth and Their Sequelae;Boysinger;Dent. Stud. Mag,1951
3. The Dentigerous Cyst Is a Poteutial Adamantinoma;Cahn;Dental Cosmos,1933
4. Surgical Classification of the Malerupted Third Molar;Coates;Brit. Dent. J,1945
5. A Survey of 3,784 Radiographs;Dachi;Oral Surg,1961