1. Ågren,, G.L., Axelsson, B., Flower-Ellis, J.G.K., Linder, S., Persson, H., Staaf, H., Troeng, E., 1980. Annual Carbon budget for a young Scots pine. In: T. Persson (Ed.), Structure and function in northern coniferous forests: An ecosystem study. Stockholm, Ecol. Bull., pp. 307–313.
2. Leaf area and above- and below-ground growth responses of Loblolly Pine to nutrient and water additions;Albaugh;For. Sci.,1998
3. Root respiration rates of four tree species grown in the field;Boyer;For. Sci.,1971
4. Caldwell, M.M., 1987. Competition between root systems in natural communities. In: Gregory, P.J. (Ed.), Root Development and Function, CA, pp. 165–185
5. The ecology of leaf life-spans;Chabot;Ann. Rev. Ecol. Syst.,1982