search query: @supervisor Härmälä, S. / total: 6
references: 4-6 / 6
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title | year | author | ||
4. | 1961 | Oksanen, Jouko |
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5. | 1961 | Kuusisto, Aarre |
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6. | 1954 | Vartiainen, Aimo Antero |
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