Teng, V., Herng, T. S., Lau, S. P., F, Y. S., Yang, H. Y., Teng, K. S., & Chen, J. S. (2007). Enhancement of ferromagnetism and stability in Cu-doped ZnO by N2O annealing. Journal of Physics: Condensed Matter, 19(35), p. 356214. doi:10.1088/0953-8984/19/35/356214

Teng, Vincent, T S. Herng, S P. Lau, Yu S. F, H Y. Yang, K S. Teng, and J S. Chen. "Enhancement of Ferromagnetism and Stability in Cu-doped ZnO By N2O Annealing." Journal of Physics: Condensed Matter 19, no. 35 (2007): 356214.

Teng, Vincent, et al. "Enhancement of Ferromagnetism and Stability in Cu-doped ZnO By N2O Annealing." Journal of Physics: Condensed Matter 19.35 (2007): 356214.