| [1] | Albert M S,Cares G D,Driehuys B et al.Nature,1994;370:199 |
| [2] | Gatzke M,Cares G D,Driehuys B et al.Phys Rev Lett,1993;70:690 |
| [3] | Adrian F J.Phys Rev,1964;A980:136 |
| [1] | Albert M S,Cares G D,Driehuys B et al.Nature,1994;370:199 |
| [2] | Gatzke M,Cares G D,Driehuys B et al.Phys Rev Lett,1993;70:690 |
| [3] | Adrian F J.Phys Rev,1964;A980:136 |