1. 1. P.D.Sarkisov, Directional Crystallization of Glass is the Basis of Obtaining Polyfunctional Glass-Crystalline Materials, RKhTU im. Mendeleyeva, Moscow (1997) [in Russian].
2. Glass–ceramic functionally graded materials produced with different methods
3. 3. Ya.I.Vakhula, Bases of Technology of Glass-Ceramics, "Lvivska Politekhnika", Lviv (2009) [in Ukrainian].
4. 4. L.L.Bragina, A.P.Zubekhin, Ya.I.Belyy et al., Technology of Enamels and Protective Coatings, NTU "KhPI", Kharkov, YuRGTU (NPI), Novocherkassk (2003) [in Russian].
5. 5. B.G.Varshal, Two-phase Glasses: Structure, Properties, Application, Nauka, Leningrad (1991) [in Russian].