Terzaghi, Mattia, et al. "Forest canopy reduction stimulates xylem production and lowers carbon concentration in fine roots of European beech." Forest Ecology and Management 379 (2016): 81-90. https://doi.org/10.1016/j.foreco.2016.08.010
Coleman, Mark D., and Doug P. Aubrey. "Stand development and other intrinsic factors largely control fine-root dynamics with only subtle modifications from resource availability." Tree physiology 38.12 (2018): 1805-1819.
https://doi.org/10.1093/treephys/tpy033
