Excitation of nitrogen molecular ions in a strong laser field by electron recollisionsVladimir T. Tikhonchuk, Jean-Félix Tremblay-Bugeaud, Yi Liu, Aurélien Houard and André MysyrowiczEur. Phys. J. D, 71 11 (2017) 292DOI: https://doi.org/10.1140/epjd/e2017-80464-3