Research output: Contribution to journal › Article › peer-review
| Original language | English |
|---|---|
| Pages (from-to) | 277-282 |
| Number of pages | 6 |
| Journal | Annales Academiae Scientiarum Fennicae. Ser. A. I. Mathematika |
| Volume | 13 |
| DOIs | |
| State | Published - 1988 |
ID: 38306211