search query: @supervisor Niskanen, Erkki / total: 43
references: 42-43 / 43
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| title | year | author | ||
| 42. | 1960 | Kajan, Seppo |
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| 43. | 1959 | Siimes, Olli |
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INSSI
| title | year | author | ||
| 42. | 1960 | Kajan, Seppo |
||
| 43. | 1959 | Siimes, Olli |