| Original language | Finnish |
|---|---|
| Place of Publication | Helsinki |
| Number of pages | 128 |
| Publication status | Published - 1997 |
| MoE publication type | D4 Published development or research report or study |
Publication series
| Series | Tielaitoksen selvityksiä |
|---|---|
| Number | 40/1997 |
| ISSN | 0788-3722 |
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