Hand, Jennifer L., Sonia M. Kreidenweis, Nathan M. Kreisberg, Susanne Hering, Mark R. Stolzenburg, William D. Dick, and Peter H. McMurry. "Comparisons of Aerosol Properties Measured by Impactors and Light Scattering From Individual Particles: Refractive Index, Number and Volume Concentrations, and Size Distributions." Atmospheric Environment 36, no. 11 (2002): 1853-1861.