1. 1. C.H. Herty Jr.: Trans. Metall. Soc. AIME, 1926, vol. 73, pp. 1107-34.
2. K. Balajiva, A.G. Quarrell, and P. Varjagupta: J. Iron Steel Inst. 1946, vol. 153, pp. 115-50.
3. K. Balajiva, A.G. Quarrell, and P. Varjagupta: J. Iron Steel Inst. 1947, vol. 155, pp. 563-67.
4. W.R. Maddocks and E.T. Turkdogan: J. Iron Steel Inst., 1950, vol. 166, pp. 321-22.
5. W.R. Maddocks and E.T. Turkdogan: J. Iron Steel Inst., 1952, vol. 171, pp. 128-36.