1. The limitations of orthodontic treatment. I. Mixed dentition diagnosis and treatment;Nance;Am J Orthod,1947
2. Preventive and interceptive orthodontics;Popovich;J Can Dent Assoc,1962
3. Guidance of eruption versus serial extraction;Hotz;Am J Orthod,1970
4. Preventive and interceptive orthodontics—a strong theory proves weak in practice;Ackerman;Angle Orthod,1980
5. Handbook of Orthodontics,1988