Whale, T. F., Murray, B. J., O’Sullivan, D., Wilson, T. W., Umo, N. S., Baustian,
K. J., Atkinson, J. D., Workneh, D. A., and Morris, G. J., 2015, A Technique for Quantifying
Heterogeneous Ice Nucleation in Microlitre Supercooled Water Droplets, Atmospheric
Measurement Techniques, Vol. 8, pp. 2437-2447.