共 50 条
- [26] UPPER AND LOWER BOUNDS TO EIGENVALUES .2. EXCITED STATES OF HE THEORETICA CHIMICA ACTA, 1969, 14 (03): : 198 - &
- [28] TIGHT UPPER AND LOWER BOUNDS FOR ENERGY EIGENVALUES OF THE SCHRODINGER-EQUATION PHYSICAL REVIEW A, 1989, 39 (04): : 1605 - 1609
- [29] UPPER AND LOWER BOUNDS TO EIGENVALUES .3. COMPARISON WITH LOWDINS METHOD THEORETICA CHIMICA ACTA, 1969, 14 (03): : 203 - &