Bödecker, C.F., Bull. N. Y. Acad. Med., 10: 553, 1934.
2.
Bödecker, C.F., Dental Cosmos, 76: 542, 1934.
3.
Pickerill, A.P. , The Prevention of Dental Caries and Oral Sepsis . London, Bailliére, Tindall & Cox, 1912.
4.
Beust, T.B. , J. A. D. A., 18: 2186, 1931 .
5.
Beust, T.B. , J. A. D. A., 18: 1060, 1931 .
6.
Bödecker, C.F., and Applebaum , E., Dental Cosmos, 74: 1171, 1932.
7.
Hodge, H.C. , and McKay, Harold, J. A. D. A., 20: 227, 1933.
8.
Karlström, S., Physiological and Pathological Studies of Dental Enamel, with Special References to the Question of its Vitality. Svensk Landlakare-Tidskrift, 1931, Supplement No. 1.