Research output: Contribution to Journal/Magazine › Journal article › peer-review
| <mark>Journal publication date</mark> | 1988 |
|---|---|
| <mark>Journal</mark> | Classical and Quantum Gravity |
| Issue number | 1 |
| Volume | 5 |
| Number of pages | 5 |
| Pages (from-to) | L21-L25 |
| Publication Status | Published |
| <mark>Original language</mark> | English |