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by:
Ikävalko, Reijo
In: Kaks' plus. - ISSN 0355-4252. - 1989 : 3, s. 8-9, 11
Kaks'plus. - ISSN 0355-4252. - 1989 : 3, s.8-9, 11
Journal article
In: Kaks' plus. - ISSN 0355-4252. - 1989 : 3, s. 8-9, 11
Kaks'plus. - ISSN 0355-4252. - 1989 : 3, s.8-9, 11
Journal article