1. C.R. Simcoe, A.E. Elsea, and G.K. Manning: Trans. Soc. AIME, 1955, vol. 203, pp. 193–200.
2. M. Ueno and T. Inoue: Trans. Iron Steel Inst. Jpn., 1973, vol. 13, pp. 210–17.
3. J.E. Morrral and T.B. Cameron: Boron in Steel, edited by S.K. Banerji and J.E. Morral, The Metallurgical Society of AIME., 1980, pp. 19–32.
4. J.E. Morral and T.B. Cameron: Metall. Trans. A, 1977, vol. 8A, pp. 1817–19.
5. M.E. Nicholson: Trans. AIME., 1956, vol. 206, pp. 551–53.