1. Frequency of the Incidence of Malocclusion in American Negro Children Aged Twelve to Sixteen;Altemus;Angle Orthodontist,1959
2. Die Häufigkeit der orthodontischen Anomalien bei Schulkindern in der Slowakei;Andrik;Fortschr. Kieferorthop.,1954
3. Malocclusion of the teeth;Angle,1907
4. The Prevalence of Malocclusion, Related to Dental Caries and Lost First Molars;Ast,1962
5. The Prevalence and Characteristics of Malocclusion Among Senior High School Students in Upstate New York;Ast;Am. J. Orthodontics,1965