1. Wu, J., Liu, H., Zhu, J., Gong, L., Xu, L., Jin, G., ... & Xu, C. (2020). Nocturnal sap flow is mainly caused by stem refilling rather than nocturnal transpiration for Acer truncatum in urban environment. Urban Forestry & Urban Greening, 56, 126800.
 

https://doi.org/10.1016/j.ufug.2020.126800

2. Doroski, D. A., Ashton, M. S., & Duguid, M. C. (2020). The future urban forest–A survey of tree planting programs in the Northeastern United States. Urban Forestry & Urban Greening, 55, 126816.
 

https://doi.org/10.1016/j.ufug.2020.126816

3. Rytter, L., & Werner, M. (2007). Influence of early thinning in broadleaved stands on development of remaining stems. Scandinavian Journal of Forest Research, 22(3), 198-210.

https://doi.org/10.1080/02827580701233494