Stitt, M. System Regulation, Department Stitt, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;
Calfapietra, C., Ainsworth, E. A., Beier, C., De Angelis, P., Ellsworth, D. S., Godbold, D. L., et al. (2010). Challenges in elevated CO2 experiments on forests. Trends in Plant Science, 15(1), 5-10. doi:10.1016/j.tplants.2009.11.001.