1. Absorption;Bates;Br J Dent Sci,1856
2. The physiological and pathological resorption of tooth roots;Ottolengui;Item of Interest,1914
3. A preliminary report of an investigation of apical root resorption of vital permanent teeth;Ketcham;Int J Orthod,1927
4. A progress report of an investigation of apical root resorption vital permanent teeth;Ketcham;Int J Orthod,1929
5. Résumé of the literature on root resorption;Steadman;Angle Orthod,1942