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by: Heliövaara, Kari (1954- )

In: Entomologica Fennica. - ISSN 0785-8760. - Helsinki : Entomologica Fennica. - 7 (1996) : 1, s. 4
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by: Heliövaara, Kari (1954- )

In: Sahayrittäjä. - ISSN 0789-0133. - 1993 : 2, s. 12-15
Journal article

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