S. Ouaskit, B. Farizon-Mazuy, M. Farizon, M.J. Gaillard, E. Gerlic, et al.. Fast negative helium ions produced by double electron capture in single He$^+$ -He collisions.
Physical Review A, American Physical Society, 1993, 48, pp.1204-1208.
⟨in2p3-00013026⟩