Hartmann, D. A. W7-X: Design and Configuration (DC), Max Planck Institute for Plasma Physics, Max Planck Society;
Hartmann, D. A. (2008). Stellarators. Fusion Science and Technology, 53(2T), 44-55. Retrieved from http://epubs.ans.org/rip/index.cgi?jd=fst-53-2T-44-55.