| Series: | Umeå economic studies. - Umeå : Univ. of Umeå, ISSN 0348-1018. - Vol. 219 |
|---|---|
| Type of publication: | Book / Working Paper |
| Type of publication (narrower categories): | Dissertation u.a. Prüfungsschriften |
| Thesis: | Umeå, Univ., Diss., 1990 |
| ISBN: | 91-7174-481-9 |
| Source: |
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