1. 1) Csicsery, S. M., Zeolite, 4, 202 (1984).
2. 2) Venuto, P. B., Micropor. Mater., 2, 297 (1994).
3. 3) Sugi, Y., Kubota, Y., "Catalysis, a Specialist Periodical Report," Royal Soc. Chem., London (1997), ed. by Spivey, J. J., Vol. 13, Chapter 3, p. 55-84.
4. 4) Sugi, Y., Kubota, Y., Hanaoka, T., Matsuzaki, T., Catal. Survey Jpn., 5, 43 (2001).
5. 5) Sugi, Y., Zeolite News Lett., 26, 98 (2009).