1. T.S. Piwonka, J.M. Wiest, Investment Casting Wax, unpublished report, 1999.
2. H.H. Rosenthal, in: Proceedings of the 27th Annual Meeting of the Investment Casting Institute, Paper no. 2, 1979.
3. V.F. Okhuysen, K. Padmanabhan, R.C. Voigt, in: Proceedings of the 46th Annual Technical Meeting, Investment Casting Institute, Paper no. 1, 1998.
4. R.A. Horton, in: Proceedings of the 31st Annual Meeting of the Investment Casting Institute, Paper no. 18, 1983.