Geodesic mode instability driven by electron and ion fluxes during neutral beam injection in tokamaks - Souza, Fábio Camilo de; Elfimov, Artour; Galvão, Ricardo Magnus Osório; Krbec, J; Seidl, J; Stöckel, J; Hron, M; Havlicek, J; Mitosinkova, K (Physics Letters A, 2017)