P. Savransky, S. Chigarina, P. Grishin, R. Simakhov, M. Khaikin, and E. Kalinnikova, “Physicochemical and structural features of the structure of enamel of permanent teeth and their hereditary conditionality”, ScienceRise: Medical Science, no. 4 (24), pp. 52–57, May 2018.