Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
<mark>Journal publication date</mark> | 1971 |
---|---|
<mark>Journal</mark> | Physics Letters A |
Issue number | 3 |
Volume | 35 |
Number of pages | 2 |
Pages (from-to) | 167-168 |
Publication Status | Published |
<mark>Original language</mark> | English |