1. I. Kotsik, I. Nebrezhenskii, and I. Fanderlik, Coloring Glass [in Russian], Stroiizdat, Moscow (1983).
2. G. S. Bogdanov, S. L. Antonova, and B. F. Dzhurinskii, “On the mechanism of coloring of glass by cerium and titanium ions,” Izv. Akad. Nauk SSSR. Cer. Neorg. Mater., 6(5), 944–948 (1970).
3. W. Xu S. Tang and W. Huang, “Fusion of glasses containing ceria and titania,” J. Non-Cryst. Solids, 112, 186–189 (1989).
4. E. E. Trusova, N. M. Bobkova, V. S. Gurin, and N. I. Gorbachuk, “Formation of coloring complexes in glasses colored by cerium and titanium oxides,” Steklo Keram., No. 10, 13–17 (2007);
5. E. E. Trusova, N. M. Bobkova, V. S. Gurin, and N. I. Gorbachuk, “Formation of coloring complexes in glass colored with cerium and titanium oxides,” Glass Ceram., 64(9–10), 346–348 (2007).