Water content and bark thickness of Norway spruce (Picea abies) stems: phloem water capacitance and xylem sap flow
Gall, R., Landolt, W., Schleppi, P., Michellod, V., & Bucher, J. B. (2002). Water content and bark thickness of Norway spruce (Picea abies) stems: phloem water capacitance and xylem sap flow. Tree Physiology, 22(9), 613-623. https://doi.org/10.1093/treephys/22.9.613