Screening constant by unit nuclear charge calculations for (n s2)1Se, (np2)1De and (N s n p)1P° excited states of He-like systems
Eur. Phys. J. D, 47 1 (2008) 37-44
Published online: 08 February 2008
DOI: 10.1140/epjd/e2008-00018-2