1. S. L. Vorob'ev, D. F. Chernega, and K. I. Vashchenko, "Hydrogen content of cast iron solidified under the influence of electric current", Tekhnologiya i Organizatsiya Proizvodstva, 6 (1971).
2. K. I. Vashchenko, D. F. Chernega, and S. L. Vorob'ev, "Properties of cast iron treated with electric current during solidification in sand molds," in: Improvement of Technological Processes in Casting Industry [in Russian], Volgograd (1971).
3. A. A. Rossoshinskii, Metallography of Weld Seams [in Russian], Mashgiz, Moscow, Kiev (1968), pp. 115?120.
4. Yu. A. Shul'te et al., "Analysis of nonmetallic inclusions in cast steel" Liteinoe Proizvodstvo, 1 (1968).
5. A. I. Veinik, Design of Castings [in Russian], Mashinostroenie, Moscow (1964), pp. 336?343.