| Original language | English |
|---|---|
| Journal | Geol. Mijnb. |
| Volume | 55 |
| Issue number | 1-2 |
| Pages (from-to) | 73-82 |
| Publication status | Published - 1976 |
| Original language | English |
|---|---|
| Journal | Geol. Mijnb. |
| Volume | 55 |
| Issue number | 1-2 |
| Pages (from-to) | 73-82 |
| Publication status | Published - 1976 |