Franck, E., Hölzl, M., Lessig, A., & Sonnendrücker, E. (2015). Energy Conservation and numerical stability for the reduced MHD models of the non-linear JOREK code. ESAIM: Mathematical Modelling and Numerical Analysis (ESAIM: M2AN), 49(5), 1331-1365. doi:10.1051/m2an/2015014.