Electronic Recombination Coefficient of Molecular Helium Ions
A. Wayne Johnson and J. B. Gerardo
Phys. Rev. Lett. 27, 835 (1971) - Published 27 September, 1971
Correlation Effect and Double Electron Ejection in the Photoabsorption Process
T. N. Chang, T. Ishihara, and R. T. Poe
Phys. Rev. Lett. 27, 838 (1971) - Published 27 September, 1971