Effects of aerosols on cloud albedo: Evaluation of Twomey's parameterization of...
Ackerman, A. S., B. Toon, J. P. Taylor, D. W. Johnson, P. V. Hobbs, and R. J. Ferek (2000), Effects of aerosols on cloud albedo: Evaluation of Twomey's parameterization of cloud susceptibility using measurements of ship tracks, J. Atmos. Sci., 57, 2684-2695.