Helander, P. Stellarator Theory (ST), Max Planck Institute for Plasma Physics, Max Planck Society;
Fülöp, T., Pusztai, I., & Helander, P. (2009). Quasilinear Transport Fluxes Driven by Electrostatic Microinstabilities in Tokamaks. In Fusion Energy 2008. Vienna: International Atomic Energy Agency.