An Interior Penalty Method with C0 Finite Elements for the Approximation of the Maxwell Equations in Heterogeneous Media: Convergence Analysis with Minimal RegularityAndrea Bonito, Jean-Luc Guermond and Francky LuddensESAIM: M2AN, 50 5 (2016) 1457-1489DOI: https://doi.org/10.1051/m2an/2015086