共 6 条
[3]
USEFUL EXTREMUM PRINCIPLE FOR VARIATIONAL CALCULATION OF MATRIX-ELEMENTS
[J].
PHYSICAL REVIEW A,
1974, 9 (01)
:108-117
[4]
The ground state of the two-electron problem of H(-), He, Li(+) ,Be (++) ao
[J].
ZEITSCHRIFT FUR PHYSIK,
1930, 65 (3-4)
:209-225