Schmid, B., Ferrare, R., Flynn, C. J., Elleman, R., Covert, D. S., Strawa, A. W., Welton, E., Turner, D., Jonsson, H. H., Redemann, J., Eilers, J., Ricci, K., Hallar, A. G., Clayton, M., Michalsky, I., Smirnov, A., Holben, B., Barnard, J. (2006). How well can we measure the vertical profile of tropospheric aerosol extinction?, J Geophys Res, doi: 2005.JD005837