Allan, R. J. and Courbin-Gaussorgues, C. and Salas Peralta, Pedro Jesús and Wahnón Benarroch, Perla (1990). State-selective effects in the differential cross section for electron capture from laser-excited sodium atoms by protons. "Journal of Physics B: Atomic, Molecular and Optical Physics", v. 23 (n. 16); pp.. ISSN 0022-3700. https://doi.org/10.1088/0953-4075/23/16/007.