1. S. Watanabe, Research Report to FAPESP, Brazil, University of Sao Paulo. (Institute of Physics, Sao Paulo, 1998)
2. N.A. Larsen, L. Botter-Jensen, S.W.S. McKeever, Radiat. Prot. Dosim. 84, 87 (1999)
3. J.K. Srivastava, in Proceedings of First International Conference on Luminescence and its Applications, Luminescence Society of India Karaikudi TN India, 1992, Published as Luminescence: Phenomena, Materials and Devices ed. by R.P. Rao (Nova Science Publishers Inc., New York, 1992), p. 71
4. C.M. Sunta, Radiat. Effects 79, 149 (1983)
5. A.R. Lakshmanan, K.G. Vohra, Nucl. Instrum. Methods 159, 585 (1979)