1. Fundamental principles of a systematic diagnosis of dental anomalies;Simon,1926
2. Neue Method zur Festellung normaler Bezeihungen der Zahne zu den gesichtslinien;Van Loon;Z. Zahnheilkd.,1916
3. A new x-ray technique and its application to orthodontia;Broadbent;Angle Orthod.,1931
4. A method of measuring facial bone growth in three dimensions;Savara;Hum. Biol.,1965