1. Curie, D. (1963) Luminescence in Crystals. Methuen & Co Ltd, London
2. Mott, N. F. and Davis, E. A. (1978) Electronic Processes in Non-Crystalline Materials. Oxford U.P., New York
3. Optical dating: preliminary results on the anomalous fading of luminescence from feldspars;Spooner;Quat. Sci. Rev.,1992
4. Trap spectroscopy by the fractional glow technique;Tale;Phys. Stat. Sol. (a),1981
5. Thermoactivation spectroscopy of luminescent solids;Tale;Proc. Sov. Acad. Sci., Phys. Sci.,1981