GraberT. M. (1972) Orthodontics Principles and Practice, 3rd Ed., Philadelphia: W. B. Saunders Company.
2.
LundG. (1950) Nogle tilfaelde af retention af 1. og. 2. molar, Tandlaegebladet, 54, 63–76.
3.
PeskinS. and GraberT. M. (1970) Surgical repositioning of the teeth, Journal of the American Dental Association, 80, 1320–1326.
4.
PindborgJ. J. (1970) Pathology of the Dental Hard Tissues, Copenhagen: Munksgaard.
5.
ReynoldsL. M. (1976) Uprighting lower molar teeth, British Journal of Orthodontics, 3, 45–51.
6.
RubinR. M. (1977) Uprighting impacted molars, Journal of Clinical Orthodontics, 11, 44–46.
7.
SchulzeC. (1962) Über Retention und Reinklusion (Depression) erster und zweiter Molaren, Deutsche Zahn-, Mund- und Kieferheilkunde, 37, 338–376.
8.
ShaferW. G., HineM. K. and LevyB. M. (1974) A Textbook of Oral Pathology, 3rd Ed., Philadelphia, London, Toronto: W. B. Saunders Company.
9.
VergopoulosE. (1958) Der verlagerte und im Oberkiefer retinierte Eckzahn, Dissertation: Mainz—Quoted by Pindborg (1970). Pathology of the Dental Hard Tissues, Copenhagen: Munksgaard.
10.
VigK. W. (1976) Some methods of uprighting lower second molars, British Journal of Orthodontics, 3, 39–44.
11.
WaltherD. P. (revised by Houston, W. J. B.), (1976) Orthodontic Notes, 3rd Ed., Bristol: John Wright.