1. The attachment of teeth;Mummery,1924
2. Comparative anatomy of tooth attachment;Shellis,1982
3. Phylogeny of tooth tissues: Evolution of some calcified tissues in early vertebrates;φRVIG,1967
4. Aspidin;Halstead,1974
5. Amelogenesis and structural Y. Kozawa, et al: Evolution of Cementum Structure 28 studies of the enamel on amphibia xenopus laevis-Comparative studies of cap enamel formation;Chisaka;Nihon Univ. J. Oral Sci.,2004