| [1] | Ahnal S A et al.,Spectrochim Acta, (B),1981; 36(10):943-950 |
| [2] | Nikl H et a1.,Opt, Commun.,1988;70(1):16-20 |
| [3] | Cheng K I et al.,Phys.Rev. (A),1985, 31; 2775-2784 |
| [4] | Yin L et al.,Chem, Phys.,1984, 4; 886-888 |
| [1] | Ahnal S A et al.,Spectrochim Acta, (B),1981; 36(10):943-950 |
| [2] | Nikl H et a1.,Opt, Commun.,1988;70(1):16-20 |
| [3] | Cheng K I et al.,Phys.Rev. (A),1985, 31; 2775-2784 |
| [4] | Yin L et al.,Chem, Phys.,1984, 4; 886-888 |