Structure and stability of small Li2+(X2Σ+g)-Xen (n = 1–6) clustersSameh Saidi, Chedli Ghanmi and Hamid BerricheEur. Phys. J. D, 68 4 (2014) 80DOI: https://doi.org/10.1140/epjd/e2014-40217-6