1. Causes of irregularities of position of the teeth;Grunning,1881
2. Evolution of orthodontia: Recent developments;Angle;Dent. Cosmos,1912
3. The bodily movement of teeth in orthodontia;Case;Dent. Cosmos,1916
4. Some engineering principles of possible interest to orthodontists;Fish;Dent. Cosmos,1917
5. Continuous bodily tooth movement and its histological significance;Reitan;Acta Odontol. Scand.,1947