1. H. Toki, Y. Sato, K. Tamura, F. Kataoka, S. Itoh, Proceedings of the 3rd International Display Workshops, vol. 2, 1996, pp. 919–920.
2. S. Itoh, H. Toki, F. Kataoka, K. Tamura, Y. Sato, Proceedings of the 3rd International Conference on the Science and Technology of Display Phosphors, 1997 Extended Abstracts, pp. 275–278, to be published in J. SID 1999.
3. S. Itoh, H. Toki, K. Tamura, F. Kataoka, Jpn. J. Appl. Phys. 38 (1999) 6387–6391.
4. H. Yamamoto, S. Okamoto, H. Toki, K. Tamura, S. Itoh, Proceedings of the 3rd International Conference on the Science and Technology of Display Phosphors, 1997 Extended Abstracts, p. 17, to be published in J. SID 1999.
5. H. Yamamoto, S. Okamoto, Proceedings of the 7th International Symposium on Physics and Chemistry of Luminescent Materials, The Electrochemical Society, Boston Meeting, 1998, pp. 90–95.