Andreeva, T., Bräuer, T., Bykov, V., Egorov, K., Endler, M., Fellinger, J., et al. (2015). Tracking of the magnet system geometry during Wendelstein 7-X construction to achieve the designed magnetic field. Nuclear Fusion, 55: 063025. doi:10.1088/0029-5515/55/6/063025.