An. Artemyev et al., VACUUM POLARIZATION SCREENING CORRECTIONS TO THE GROUND-STATE ENERGY OF 2-ELECTRON IONS, Physical review. A, 56(5), 1997, pp. 3529-3534
Vacuum polarization screening corrections to the ground-state energy o
f two-electron ions are calcualated in the range Z=20-100. The calcula
tions are carried out for a finite nucleus charge distribution. [S1050
-2947(97)05310-9].