DELGADO SOLANO, Amando; MENDOZA-SUÁREZ, J. A.. Study OF Hpi Atom Through Perturbations. Revista Cubana de Física, [S.l.], v. 34, n. 2, p. 143-151, dec. 2017. ISSN 2224-7939. Available at: <http://revistacubanadefisica.org/index.php/rcf/article/view/RCF_2017_34_2_143>. Date accessed: 19 apr. 2024.