Schulze, E. D. Department Biogeochemical Processes, Prof. E.-D. Schulze, Max Planck Institute for Biogeochemistry, Max Planck Society;
Heilmeler, H., Schulze, E. D., Fan, J., & Hartung, W. (2007). General relations of stomatal responses to xylem sap abscisic acid under stress in the rooting zone - A global perspective. Flora, 202(8), 624-636. doi:10.1016/j.flora.2007.06.002.