IGBP Terrestrial Carbon Working Group, Steffen, W., Noble, I., Canadell, J., Apps, M., Schulze, E.-D., Jarvis, P. G., Baldocchi,
D., Ciais, P., Cramer, W., Ehleringer, J., Farquhar, G., Field, C. B., Ghazi, A., Gifford, R., Heimann, M., Houghton, R.,
Kabat, P., Körner, C., Lambin, E., Linder, S., Mooney, H. A., Murdiyarso, D., Post, W. M., Prentice, I. C., Raupach, M. R.,
& Schimel, D. S. (1998). The terrestrial carbon cycle: implications for the Kyoto
protocol. Science, 280(5368), 1393-1394. doi:10.1126/science.280.5368.1393.