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https://doi.org/10.1111/j.1654-1103.2009.05701.x

2. Van der Werf, G. W., Sass-Klaassen, U. G., & Mohren, G. M. J. (2007). The impact of the 2003 summer drought on the intra-annual growth pattern of beech (Fagus sylvatica L.) and oak (Quercus robur L.) on a dry site in the Netherlands. Dendrochronologia, 25(2), 103-112.

https://doi.org/10.1016/j.dendro.2007.03.004

3. Mitchell, P. J., Veneklaas, E. J., Lambers, H., & Burgess, S. S. (2008). Leaf water relations during summer water deficit: differential responses in turgor maintenance and variation in leaf structure among different plant communities in south‐western Australia. Plant, Cell & Environment, 31(12), 1791-1802.

https://doi.org/10.1111/j.1365-3040.2008.01882.x