Bolt, H., Barabash, V., Krauss, W., Linke, J., Neu, R., Suzuki, S., Yoshida, N., & ASDEX Upgrade Team (2004). Materials for the plasma-facing components of fusion reactors. Journal of Nuclear Materials, 329-333, 66-73. Retrieved from http://dx.doi.org/10.1016/j.jnucmat.2004.04.005.