| Original language | English |
|---|---|
| Publisher | VTT Technical Research Centre of Finland |
| Number of pages | 42 |
| Publication status | Published - 1991 |
| MoE publication type | D4 Published development or research report or study |
Publication series
| Series | NT techn report |
|---|---|
| Number | 170 |
| ISSN | 0283-7234 |