Helander, P. Stellarator Theory (ST), Max Planck Institute for Plasma Physics, Max Planck Society;
http://dx.doi.org/10.1103/PhysRevLett.113.135003 (Publisher version)
Helander_Microstability.pdf (Any fulltext), 85KB
Helander, P. (2014). Microstability of Magnetically Confined Electron-Positron Plasmas. Physical Review Letters, 113: 135003. doi:10.1103/PhysRevLett.113.135003.