Chow, J. C., Watson, J. G., Lowenthal, D. H., Hackney, R., Magliano, K. L., Lehrman, D., Smith, T. (1998). Temporal variations of PM2.5, PM10, and gaseous precursors during the 1995 Integrated Monitoring Study in Central California, Proceedings, PM2.5: A Fine Particle Standard, 59-77, Air & Waste Management Association: Pittsburgh, PA