1. Arch predetenmination—is it practical? I Am Dent Assoc;Gilpatric,1923
2. Asymmetry in tooth size: a factor in the etiology, diagnosis and treatment of malocclusion;Ballard;Angle Orthod,1944
3. Tailored occlusion with the anterior coefficient;Neff;Am J Orthod,1949
4. A fifth column within normal dental occlusions;Ballard;Am J Orthod,1956
5. Disharmony in tooth size and its relation to the analysis and treatment of malocclusion;Bolton;Am J Orthod,1958