Gasparotto, M., Erckmann, V., Gardebrecht, W., Rummel, T., Schauer, F., Wanner, M., Wegener, L., & W7-X Team (2005). W7-X Progress. Fusion Science and Technology, 47, 339-344. Retrieved from http://epubs.ans.org/rip/index.cgi?jd=fst-47-3-339-344.