1. I. V. Kravchenko, Alumina Cement [in Russian], Gosstroiizdat, Moscow (1961), 175 pp.
2. M. T. Mel'nik and N. N. Shapovalova, Tsement, No. 4, 9?10 (1962).
3. M. T. Mel'nik, N. N. Shapovalova, and L. G. Levit, Authors' Certificate No. 315697. Byull. Izobr., No. 29, 64 (1971).