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by:
Kuitunen, Kalevi
In: Portti. - ISSN 0359-114X. - 8(1989) : 4, s. 41-50
Portti. - ISSN 0359-114X. - 8(1989) : 4, s.41-50
Journal article
In: Portti. - ISSN 0359-114X. - 8(1989) : 4, s. 41-50
Portti. - ISSN 0359-114X. - 8(1989) : 4, s.41-50
Journal article