search query: @author Koivistoinen, Pertti Veikko Olavi / total: 1
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| title | year | author | ||
| 1. | 1966 | Koivistoinen, Pertti Veikko Olavi |
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| title | year | author | ||
| 1. | 1966 | Koivistoinen, Pertti Veikko Olavi |