1. Oral deformities;Kingsley,1880
2. Treatment of malocclusion of the teeth;Angle,1907
3. Orthodontics in daily practice: Possibilities and limitations in the area of children's dentistry;Robin,1974
4. Removable orthodontic appliances;Andresen,1977
5. Exercises for the development of the muscles of the face, with a view to increase their functional activity;Rogers;Dent. Cosmos,1918