1. V. I. Shapovalov and V. V. Trofimenko,Flakes and Control of Hydrogen in Steel [in Russian], Metallurgiya, Moscow (1987).
2. Yu. A. Bashnin, V. N. Tsurkov, and V. M. Korovina,Heat Treatment of Large Parts and Semifinished Products in Metallurgical Plants [in Russian], Metallurgiya, Moscow (1985).
3. V. Ya. Dubovoi,Flakes in Steel [in Russian], Metallurgizdat, Moscow (1950).
4. D. Ya. Povolotskii and A. N. Morozov,Hydrogen and Flakes in Steel [in Russian], Metallurgizdat, Moscow (1959).
5. P. V. Sklyuev,Hydrogen and Flakes in Large Forgings [in Russian], Mashgiz, Moscow (1963).