Gerould, C.H. : Ultra Microstructures of the Human Tooth as Revealed by the Electron Microscope, J. D. Res. 23: 239, 1944.
2.
Gerould, C.H. : Electron Microscope Study of the Mechanism of Fluorine Deposition in the Teeth, J. D. Res. 24: 223, 1945.
3.
Scott, D.B., and Wyckoff, R.W.G.: Electron Microscopy of Tooth Structure by the Shadowed Collodion Replica Method, Pub. Health Rep. 62: 1513, 1947.
4.
Syrrist, A.: En orientering i elektronmikroskopien med noen resultater fra histologiske undersøkelser av emalje og dentin, Odont. Tidsk. 2: 79, 1949.
5.
Scott, D.B., Picard, R.G., and Wyckoff, R.W.G.: Studies of the Action of Sodium Fluoride on Human Enamel by Electron Microscopy and Electron Diffraction, Pub. Health Rep. 65: 43, 1950.
6.
Frank, R.: Etudes sur l'infrastructure microscopique de 1'email et sur la surface libre coronaire de la dent. Schweiz. Monatsohr. f. Zahnheilk . 60: 1109, 1950.
7.
Newman, S.B. , Borysko, E., and Swerdlow, M.: Ultra-microtomy by a New Method. J. Res. Nat. Bur. Standards43: 183, 1949.
8.
Sognnaes, R.F. : The Organic Elements of the Enamel. II. The Organic Framework of the Internal Part of the Enamel, with Special Regard to the Organic Basis for the So-Galled Tufts and Schreger's Bands, J. D. Res. 28: 549, 1949.
9.
Latta, H., and Hartman, J.F. : Use of a Glass Edge in Thin Sectioning for Electron Microscopy, Proc . Soc. Exper. Biol. & Med. 74: 436, 1950.
10.
Wyckoff, R.W.G.: Electron Microscopy. New York, 1949, Interscience Publishers, p. 64.
11.
Hopewell-Smith, A.: Evidence Against the Theory of the Metabolic Properties of Human Enamel, New Zealand D. J. 27: 54, 1931.
12.
Keil, A.: Beitrage zur Kenntnis der Doppelbrechung des menschlichen Zahnsubstanzes , Zeitschr. f. Zellforsch. 25: 204, 1936.
13.
Thewlis, J.: The Submicroscopic Structure of Dental Enamel, D. Record60: 49, 1940.
14.
Sognnaes, R.F. : The Organic Elements of the Enamel. I. A Study of the Principal Factors Involved in the Histological Preservation of the Organic Elements of the Enamel and Other Highly Calcified Structures, J. D. Res. 27: 609, 1948.
15.
Frisbie, H.E. , Nuckolls, J., and Saunders, J.B.deC. M.: Distribution of the Organic Matrix of the Enamel in the Human Tooth and Its Relation to the Histopathology of Caries, J. Am. Coll. Dent . 11: 243, 1944.
16.
Moller, H., and Trommel, G.: Roentgenographische Untersuchung uber den Aufbau der anorganischen Zahnsubstanz , Naturwiss. 21: 346, 1933.
17.
Bale, W.F., Hodge, H.C., and Warren, S.L.: Roentgen-ray Diffraction Studies of Enamel and Dentin, Am. J. Roentgenol. 32: 369, 1934.
18.
Thewlis, J. : The Examination of Dental Enamel by X-Rays and the Polarizing Microscope, Proc. Phys. Soc. London51: 992, 1939.