Ehrke, G. W7-X: In-vessel Components (KIP), Max Planck Institute for Plasma Physics, Max Planck Society;
Ehrke, G., & W7-X Team (2009). Transition of W7-X non-planar coils from manufacturing to assembly. Fusion Engineering and Design, 84(2-6), 729-732. doi:10.1016/j.fusengdes.2008.11.079.