1. M. Beckert, Eisen. Tatsachen und Legenden, VEB Deutscher Verlag, Leipzig, 1981.
2. Yu. S. Yusfin, V.V. Dan’shin, N.F., Pashkov, V.A. Pitatelev, Theory of Metallization of Iron-Contained Raw Materials, Metallurgiya, Moscow, 1982 (in Russian).
3. L. Gruner, Traite de Metallurgie Generale, Paris, 1875.
4. M.A. Pavlov, Metallurgy of Cast Iron, Kubuch, Leningrad, 1935 (in Russian).