1. Elwood, W.K., Bernstein, M.H.: The ultrastructure of the enamel organ related to enamel formation. Am. J. Anat. 122, 73–94 (1968)
2. Frank, R.M.: Etude ultrastructurale de la dentinogenèse et de l'amélogenèse. Thèse (Strasbourg) 1968
3. Frank, R.M., Nalbandian, J.: Ultrastructure of amelogenesis. In: Structural and chemical organization of teeth, Vol. 1 (A.E.W. Miles, ed.) pp. 399–466. New York: Academic Press 1967
4. Kallenbach, E.: Fine structure of stellate reticulum, outer enamel epithelium and stratum intermedium in the enamel organ of the cat. Anat. Rec. 181, 388 (1975)
5. Laurent, T.C.: II. Ultrastructure and physical-chemical properties of interstitial connective tissue. Pflügers Arch. 336 (Suppl.), 21–42 (1972)