1. Leveling of the curve of Spee. Its effect on mandibular arch length;Balridge;J Pract Orthod,1969
2. Developmental changes of the maxillary and mandibular dental arches;Barrow;Angle Orthod,1952
3. Growth in the aging craniofacial skeleton;Behrents,1985
4. The lower incisors in the theory and practice;Berger;Angle Orthod,1959
5. Maxillary growth and development: the method of analysis;Bishara,1978