Production of the Q2 doubly excited states of the hydrogen molecule by electron impact in a single step Leonardo O. Santos, Alexandre B. Rocha, Nelson Velho de Castro Faria and Ginette Jalbert Eur. Phys. J. D, 71 3 (2017) 46 Published online: 02 March 2017 DOI: 10.1140/epjd/e2017-70405-7