Tibbetts, T. J.; Ewers, F. W. (September 2000). "Root pressure and specific conductivity in temperate lianas: exotic Celastrus orbiculatus (Celastraceae) vs. native Vitis riparia (Vitaceae).". American Journal of Botany87 (9): 1272–1278. doi:10.2307/2656720. பப்மெட்:10991898.
Cao, Kun-Fang; Yang, Shi-Jian; Zhang, Yong-Jiang; Brodribb, T.J. (July 2012). "Maximum height of grasses is determined by roots". Ecology Letters15 (7): 666-672. doi:10.1111/j.1461-0248.2012.01783.x. பப்மெட்:22489611.
Tibbetts, T. J.; Ewers, F. W. (September 2000). "Root pressure and specific conductivity in temperate lianas: exotic Celastrus orbiculatus (Celastraceae) vs. native Vitis riparia (Vitaceae).". American Journal of Botany87 (9): 1272–1278. doi:10.2307/2656720. பப்மெட்:10991898.
Cao, Kun-Fang; Yang, Shi-Jian; Zhang, Yong-Jiang; Brodribb, T.J. (July 2012). "Maximum height of grasses is determined by roots". Ecology Letters15 (7): 666-672. doi:10.1111/j.1461-0248.2012.01783.x. பப்மெட்:22489611.