Wobig, H. Stellarator Theory (ST), Max Planck Institute for Plasma Physics, Max Planck Society; Experimental Plasma Physics 3 (E3), Max Planck Institute for Plasma Physics, Max Planck Society;
Kolesnichenko, Y. I., Lutsenko, V. V., Wobig, H., & Yakovenko, V. (2002). Alfven instabilities driven by circulating ions in optimized stellarators and their possible consequences in a Helias reactor. Physics of Plasmas, 9(2), 517-528.