Regarding the 2 1S 0 and 2 3S 1 multiplets
刘云虎
Regarding the 2 1 S 0 and 2 3 S 1 multiplets
Liu Yun-Hu(刘云虎)
中国物理B . 2009, (5): 1828 -1832 .  DOI: 10.1088/1674-1056/18/5/018