1. J. Burke and N. Swindells: inRecent Research in Cast Iron, H. Marchant, ed., p. 449, Gordon and Breach, New York, 1968.
2. G. Sandoz: inRecent Research in Cast Iron, H. Marchant, ed., p. 509, Gordon and Breach, New York, 1968.
3. Ya. N. Malihochka, S. B. Maslenkov, and T. V. Egorshina:Liteinoe Proizvod., 1963, no. 1, p. 23.
4. J. Hilliard and W. S. Owen:J. Iron Steel Inst., 1952, vol. 172, p. 268.
5. W. C. Phelps: inRecent Research in Cast Iron, H. Marchant, ed., p. 629, Gordon and Breach, New York, 1968.