DAO, Lap Van; HANNAFORD, Peter. Perturbative Nonlinear Optics in the Extreme Ultraviolet Region. <b>Communications in Physics</b>, <i>[S. l.]</i>, v. 27, n. 2, p. 97, 2017. DOI: 10.15625/0868-3166/27/2/9217. Disponível em: https://vjs.ac.vn/cip/article/view/270201. Acesso em: 2 jan. 2026.