| Original language | English |
|---|---|
| Journal | Physical Review Letters |
| Volume | 48 |
| Issue number | 22 |
| Pages (from-to) | 1569-1569 |
| ISSN | 0031-9007 |
| DOIs | |
| Publication status | Published - 1982 |
Bibliographical note
Copyright (1982) by the American Physical Society.Cite this
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