1. Effects of malalignment of teeth in the anterior segments on plaque accumulation;Griffiths;J Clin Periodontol,1981
2. Einige Beiträge zur Theorie der Zahnregulierung;Sandstedt;Nordisk Tandläkare Tidskrift,1904
3. Einige Beiträge zur Theorie der Zahnregulierung;Sandstedt;Nordisk Tandläkare Tidskrift,1905
4. Tissue changes, particularly of the bone, incident to tooth movement;Oppenheim;Am Orthod,1911
5. Tissue changes in experimental traumatic occlusion with special reference to age and constitution;Gottlieb;J Dent Res,1931