Bruhns, H. Experimental Plasma Physics 1 (E1), Max Planck Institute for Plasma Physics, Max Planck Society;
Bruhns, H., & et al. (1988). Magnetic Properties of the Spherical Torus: 15.European Conference. Europ.Conf.on Controlled Fusion and Plasma Heating, Part 2, 12B, 2, 641-644.