1. Variation of tooth position: a metric study of variation and adaptation in the deciduous and permanent dentitions;Seipel;Sven Tandlak Tidskr,1946
2. Mixed-dentition case analysis: estimating size of unerupted permanent teeth;Ballard;Am J Orthod,1947
3. Handbook of orthodontics for the student and general practitioner;Moyers,1973
4. The prediction of the size of unerupted canines and premolars in a contemporary orthodontic population;Tanaka;J Am Dent Assoc,1974
5. Correlations among crown diameters of human teeth;Moorrees;Arch Oral Biol,1964