Nührenberg, C. Stellarator Theory (ST), Max Planck Institute for Plasma Physics, Max Planck Society;
Nührenberg, C. (1999). Computational ideal MHD: Alfvén, sound and fast global modes in W7-AS. Plasma Physics and Controlled Fusion, 41(9), 1055-1070. doi:10.1088/0741-3335/41/9/301.