Williams, P. A., English, R. J., Blanchard, R. L., Rose, S. A., Lyons, L., & Whitehead, M. (2008). The influence of the extensional viscosity of very low concentrations of high molecular mass water-soluble polymers on atomisation and droplet impact. Pest Management Science, 64(5), 497-504. https://doi.org/10.1002/ps.1523