1. G.K. Sigworth, AFS Trans., 1996, 104, pp 1053-1062.
2. D.G. Eskin, Suyitno, L. Katgerman, Prog. Mater. Sci., 2004, 49(5), pp 629-711.
3. W.S. Pellini, Foundry, 1952, 80, pp 125-133.
4. W.I. Humphrey, J. Inst. Metals, 1948, 75, pp 235.
5. J.C. Borland, Br. Weld. J., 1960, 7, pp 508-512.