A.K, S. ., V. . M.F, K. . M.K, M. . I.A, H. . Sh.Zh, and S. . Y.A. “Mössbauer Research of Surface-Surface Concentric-Zonal Color Effects in Zoloceramic Materials”. International Journal of Geography and Geology, vol. 7, no. 3, May 2018, pp. 45-55, doi:10.18488/journal.10.2018.73.45.55.