http://dx.doi.org/10.1111/j.1365-3040.1996.tb00401.x (Publisher version)
Schurr, U., & Schulze, E. D. (1996). Effects of drought on nutrient and ABA transport in Ricinus communis. Plant, Cell and Environment, 19(6), 665-674. doi:10.1111/j.1365-3040.1996.tb00401.x.