1. J. Campbell, Mater. Sci. Technol., 2006, vol. 22, pp. 127-145.
2. J. Campbell: Castings, 2nd ed., Butterworth-Heineman, Oxford, 2003.
3. M. El-Sayed, H. Hassanin, and K. Essa: Int. J. Cast Metal Res., 2016, In Press.
4. M.P. Silva and D.E.J. Talbot: in Proc. Conf. on Light Metals, 118th Ann. Meeting, 1989, Las Vegas, NV.
5. C. Nyahumwa, N. R. Green and J. Campbell, AFS Trans., 1998, vol. 106, pp. 215-223.