Hofmann, J. V., Baldzuhn, J., Brakel, R., Feng, Y., Fiedler, S., Geiger, J., Grigull, P., Herre, G., Jaenicke, R., Kick, M., Kisslinger, J., Kuhner, G., Penningsfeld, F. P., Runow, A., Sardei, F., Stroth, U., Wagner, F., Weller, A., & Wobig, H. (1996). Stellarator optimization studies in W7-AS. Plasma Physics and Controlled Fusion, 38(12A Sp. Iss. SI), A193-A211. doi:10.1088/0741-3335/38/12A/015.