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https://doi.org/10.1016/j.foreco.2008.01.043

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https://doi.org/10.1016/j.foreco.2013.07.048

3. Welling, A., & Palva, E. T. (2006). Molecular control of cold acclimation in trees. Physiologia Plantarum, 127(2), 167-181.

https://doi.org/10.1111/j.1399-3054.2006.00672.x