1. Differential Diagnosis and Prognosis;Lischer;Int. J. Orthodontia,1930
2. What Are the Requirements of Orthodontic Diagnosis;Waugh;Int. J. Orthodontia,1933
3. The Face of the Normal Child;Broadbent;Angle Orthodontist,1937
4. Diagnosis in Orthodontics, Theory and Practice;Salzmann;Am. J. Orthodontics & Oral Surg.,1942