1. D. Seale and X. Wu, 6thInternational Display Workshop, p. 861 (1999)
2. O. Djazovski, D. Cheong and X. Wu, The 10thInternational Workship on Inorganic and Organic Electroluminescence, p. 471 (2000)
3. X. Wu, International Display Workshop, 8thInternational Display Workshop, p. 1055 (2001)
4. M. Kawanishi, N. Miura, H. Matsumoto and R. Nakano, 6thInternational Display Workshops, p. 821 (1999)