1. Theoretical and practical aspects of crowding in the human dentition;Van der Linden;J Am Dent Assoc,1974
2. Developmental changes of the maxillary and mandibular dental arches;Barrow;Angle Orthod,1952
3. Lower arch changes during the early teens;Cryer;Trans Eur Orthod Soc,1965
4. Changes in crowding and spacing of the teeth with age;Lundström;Dent Pract,1968
5. A longitudinal evaluation of the dental and skeletal changes in untreated normals from the mixed dentition into adulthood [Master's thesis];Sinclair,1981