| Original language | English |
|---|---|
| Journal | Physics Letters |
| Volume | 19 |
| Issue number | 4 |
| Pages (from-to) | 304-306 |
| ISSN | 0031-9163 |
| DOIs | |
| Publication status | Published - 1965 |
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Research output: Contribution to journal › Letter › peer-review
| Original language | English |
|---|---|
| Journal | Physics Letters |
| Volume | 19 |
| Issue number | 4 |
| Pages (from-to) | 304-306 |
| ISSN | 0031-9163 |
| DOIs | |
| Publication status | Published - 1965 |