Karlstrom, S.: Physical, Physiological and Pathological Studies of Dental Enamel with Special References to the Question of its Vitality, Stockholm, 1931, A. B. Fahlcrantz' Boktryckeri.
2.
Thewlis, J.: X-ray Analysis of Teeth, Brit. J. Radiology, N. S. 5: 353, 1932.
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Deakins, M.: Changes in the Ash, Water and Organic Content of Pig Enamel During Calcification , J. D. Res. 21: 429, 1942.
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Jensen, A.T., and Moller, A.: Determination of Size and Shape of the Apatite Particles in Different Dental Enamels and in Dentin by the X-ray Powder Method, J. D. Res . 27: 524, 1948.
5.
Sobel, A.E., Hanok, A., Kirshner, H.A., and Fankuchen, I.: Calcification of Teeth. II. Comparison of Some Properties of Human and Rat Teeth, J. D. Res. 28: 61, 1949.
6.
Gilda, J.E.: Studies on the Physical Properties of Rodent Enamel. I. The Manly-Hodge Method as Applied to the Teeth of the Rat and Hamster, J. D. Res . 30: 4451951.
7.
Manly, R.S., Hodge, H.C., and Ange, L.E.: Density and Refractive Index Studies of Dental Hard Tissues. II. Density Distribution Curves, J. D. Res. 18: 203, 1939.
8.
Bale, W.F.: A Comparative Roentgen-Ray Diffraction Study of Several Natural Apatites and the Apatite-like Constituent of Bone and Tooth Substance, Am. J. Roentgenology43: 735, 1940.
9.
Berghash, S.R. , and Hodge, H.C.: Density and Refractive Index Studies of Dental Hard Tissues. III. Density Distribution of Deciduous Enamel and Dentin, J. D. Res. 19: 487, 1940.
10.
Armstrong, W.D.: Biochemical and Nutritional Studies in Relation to the Teeth, Ann. Rev. Biochem. 11: 441, 1942.
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Hanawalt, J.D. , and Rinn, H.W.: Identification of Crystalline Materials. Classification and Use of X-ray Diffraction Patterns, Ind. Eng. Chem. Anal Ed. 8: 244, 1936.
12.
Deakins, M. , and Volker, J.F.: Amount of Organic Matter in Enamel from Several Types of Human Teeth, J. D. Res. 20: 117, 1941.