Energy Resonances for $^1P^o,$ $^1D^e,$ $^1F^o,$ $^1G^e,$ and $^1H^o$ Autoionizing States of the Helium Isoelectronic Series Below the $n=2-4$ Hydrogenic Thresholds. Journal of Atomic and Molecular Sciences, [S. l.], v. 2, n. 1, p. 20–42, 2018. DOI: 10.4208/jams.062910.072810a. Disponível em: https://www.global-sci.com/index.php/jams/article/view/14586. Acesso em: 5 dec. 2025.