1. Tilley, R., Colour and Optical Properties of Materials, Chichester: Wiley, 2011.
2. Fanderlik, I., Optical Properties of Glass, Glass Science and Technology Series, Amsterdam: Elsevier, 1983.
3. Ahmadi Moghaddam, H., Study of stable gallium oxide heavy metal (Ga2O3–Bi2O3–PbO) system glasses proposed as a base for optically noble glazes and enamels, Prog. Color, Color. Coat., 2014, vol. 7, no. 3, pp. 201–212.
4. Sanz, O., Haro-Poniatowski, E., Gonzalo, J., and Fernandez Navarro, J. M., Influence of the melting conditions of heavy metal oxide glasses containing bismuth oxide on their optical absorption, Non-Cryst. Solids, 2006, vol. 352, pp. 761–768.
5. Dimitriev, Y.B. and Mihailova, V.T., Glass formation in binary systems with Bi2O3 and PbO participation, J. Mater. Sci. Lett., 1990, vol. 9, no. 11, pp. 1251–1254.