氦原子能级的变分微扰计算
白占武, 阎占元
Variational-perturbation calculation of the first excited state energy levels for Helium atom
BAI Zhan-wu, YAN Zhan-yuan
大学物理 . 2021, (01): 21 -23 .  DOI: 10.16854 /j.cnki.1000-0712.200022