Nishimura, T.Histologische Untersuchungen über die Anfange der Zahnkaries, speziell der Karies der Schmelzes, Schweiz. Monatschr. Zahnheilk., 36:491, 1926.
2.
Coolidge, T.B. , and Wallace, B.J.The Pathways of the Early Carious Process . I. Histologic Study, J. D. Res., 40:314, 1961.
3.
Wallace, B.J.The Pathways of the Early Carious Process. II. Radiologic Study, J. D. Res., 40:321, 1961.
4.
Coolidge, T.B. , and Jacobs, M.H.Enamel Carbonate in Caries, J. D. Res., 36:765, 1957.
5.
Gustafson, G.The Histopathology of Caries of Human Dental Enamel, Acta Odont. Scandinavica, 15:13, 1957.
6.
Coolidge, T.B. , Besic, F.C., and Jacobs, M.H.A Microscopic Comparison of Clinically and Artificially Produced Changes in Enamel, Oral Surg., Oral Med., Oral Path., 8:1204, 1955.
7.
Darling, A.I.Studies of the Early Lesion of Enamel Caries with Transmitted Light, Polarized Light and Radiography, Brit. D. J., 101:289, 329, 1956.
8.
-. Studies of the Early Lesion of Enamel Caries, ibid., 105:119, 1958.
9.
Wallace, B.J.The Zone of Air Imbibition in Carious Lesions , J. D. Res., 41:136, 1962.
10.
-. Positive Berefringnce in Non-carious Enamel, J. D. Res., 40:219, 1961.
11.
Wachtel, L.W.Nitrogen Content of Zones Distinguished by Reflected Light in Enamel Sections from Unerupted Third Molars, J. D. Res., 38:3, 1959.
12.
Newbrun, E. , Brudevold, F., and Mermagen, H.A.Microradiographic Evaluation of Occlusal Fissures and Grooves, J.A.D.A., 58:26, 1959.
