1. G. A. Machulka, Laser Processing of Glass [in Russian], Sov. Radio, Moscow (1979).
2. V. S. Kondratenko, V. E. Borisovskii, and P. D. Gindin, Welding of Quartz Glass [in Russian], IRVI-VOLEI, Moscow (2006).
3. V. K. Sysoev, Laser Processing of Oxide Glasses [in Russian], RKhTU im. D. I. Mendeleeva, Moscow (2011).
4. V. I. Masychev, Application of a CO Laser for Thermal Processing of Electrovacuum Glasses [in Russian], MGIÉM, Moscow (2001).