The gyrokinetic water-bag modeling in toroidal geometry R. Klein, E. Gravier, J.H. Chatenet, N. Besse, P. Bertrand and X. Garbet Eur. Phys. J. D, 62 3 (2011) 413-420 Published online: 15 April 2011 DOI: 10.1140/epjd/e2011-10595-4