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Tübingen: Niemeyer, 1985
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Tampere: Tamperen Yliopisto, 1967
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Walter de Gruyter GmbH, 1989
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Walter de Gruyter GmbH, 1981
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Walter de Gruyter GmbH, 1978
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Walter de Gruyter GmbH, 1970
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JSTOR, 1986
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JSTOR, 1966
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Berlin; Boston: De Gruyter, 2022
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Informa UK Limited, 2022
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MDPI AG, 2020
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JSTOR, 1988
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Finnish Society of Forest Science, 2014
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Kasvatus, 2023
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Springer Science and Business Media LLC, 2010
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Canadian Science Publishing, 2022
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Oxford University Press (OUP), 2021
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Institute of Electrical and Electronics Engineers (IEEE), 2019
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Springer Science and Business Media LLC, 2018
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Institute of Electrical and Electronics Engineers (IEEE), 2014