Long-range interactions of lithium atoms
  The long-range interactions of two atoms, of an atom and a dielectric wall, of an atom and a perfectly conducting wall, and of an atom between two perfectly conducting walls are calculated, including the effects of retardation, for Li using dynamic polarizabilities determined from highly correlated, variationally determined wave functions. 
Zong-Chao Yan, A. Dalgarno, and J. F. Babb