1. Allen, M. G., McManus, K. R., Sonnenfroh, D. M. and Paul, P. H., Applied Optics, 34, 27, (1995), 6287.
2. Deguchi, Y., Noda, M., Murata, M., Inada, M. and Nishida, H., Proceedings of 1995 Yokohama Gas Turbine Congress, (1995), II-321.
3. Deguchi, Y. and Iwasaki, S., Proceedings of ASPACC 97, (1997), 22.
4. Hanson, R. K., Twenty-first Symposium (International) on Combustion (1986), 1677.
5. Knapp, M., Luczak, A., Beushausen, V., Hentschel, W., Manz, P. and Andresen, P., SAE Technical Paper 970824, (1997), 69.