Yarova, S. P., and I. I. Zabolonaya. “Analysis of Enamel Microhardness at Various Hard Tissue States and Depth of the Microfissures”. Zaporozhye мedical journal 15, no. 4 (September 3, 2013). Accessed April 27, 2024. http://zmj.zsmu.edu.ua/article/view/16916.