Enhanced SOA formation from mixed anthropogenic and biogenic emissions during the CARES campaign. - Shilling, J. E.; Zaveri, R. A.; Fast, J. D.; Kleinman, L.; Alexander, M. L.; Canagaratna, M. R.; Fortner, E.; Hubbe, J. M.; Jayne, J. T.; Sedlacek, A.; Setyan, A.; Springston, S.; et al. (Atmospheric Chemistry & Physics, 2013)