Charged cores in ionized 4He clusters II: Ab initio calculations for the He2+ + He system and Many-Body fitting of the computed pointsE. Scifoni, G. Dellepiane and F. A. GianturcoEur. Phys. J. D, 30 3 (2004) 353-362DOI: https://doi.org/10.1140/epjd/e2004-00108-1