Doubly excited resonances of the helium sequence associated with N=4 hydrogenic thresholds

This publication has 2 references indexed in Scilit:

• Energy levels and classifications of doubly-excited states in two-electron systems with nuclear charge, Z = 1, 2, 3, 4, 5, below the N = 2 and N = 3 thresholds
  Atomic Data and Nuclear Data Tables, 1977
• Comparison of doubly-excited helium energy levels, isoelectronic series, autoionization lifetimes, and group-theoretical configuration-mixing predictions with large-configuration-interaction calculations and experimental spectra
  Physical Review A, 1975