| Date of Award | 31 Aug 1981 |
|---|---|
| Original language | Dutch |
| Supervisor | P.C. Veenstra (Supervisor 1), J.A. Poulis (Supervisor 1), J.A. Beun (Supervisor 2), J.A.G. de Deugd (Supervisor 2) & F. Doorschot (Supervisor 2) |
| Date of Award | 31 Aug 1981 |
|---|---|
| Original language | Dutch |
| Supervisor | P.C. Veenstra (Supervisor 1), J.A. Poulis (Supervisor 1), J.A. Beun (Supervisor 2), J.A.G. de Deugd (Supervisor 2) & F. Doorschot (Supervisor 2) |