Electron-induced double ionization of oriented methane molecules Dahbia Oubaziz, Zakia Aitelhadjali, Michele Arcangelo Quinto, Rachida Boulifa and Christophe Champion Eur. Phys. J. D, 71 6 (2017) 160 Published online: 15 June 2017 DOI: 10.1140/epjd/e2017-70710-1