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Schwarz, J.P., R.S. Gao, D. W. Fahey, D.S. Thomson, L.A. Watts, J. C. Wilson, J.M. Reeves, M. Darbeheshti, D.G. Baumgardner, G.L. Kok, S.H. Chung, M. Schulz, J. Hendricks, A. Lauer, B. Karcher, J.G. Slowik, K.H. Rosenlof, T.L. Thompson, A.O. Langford, M. Loewenstein, and K.C. Aikin. 2006. Single-particle measurements of midlatitude black carbon and light-scattering aerosols from the boundary layer to the lower stratosphere. J. Geophys. Res., 111, D16207, doi:10.1029/2006JD007076, 2006.

Popp, P.J., T. Marcy, L.A. Watts, R. Gao, D.W. Fahey; E. Weinstock, J. Smith, B. Herman, RF. Troy, C. Webster, L. Christensen, D. Baumgardner, C. Voigt, B. Kärcher, C. Wilson, M. Mahoney, E. Jensen, P. Bui, Condensed-phase nitric acid in a tropical subvisible cirrus cloud, Geophys. Res. Lett., 34, L24812, doi:10.1029/ 2007GL031832, 2007.

Spackman, J.R., J.P. Schwarz, R.S. Gao, L.A. Watts, D.S. Thomson, D.W. Fahey, J.S. Holloway, J.A. de Gouw, M. Trainer, and T.B. Ryerson (2008), Empirical correlations between black carbon aerosol and carbon monoxide in the lower and middle troposphere, Geophys. Res. Lett., 35, L19816, doi:10.1029/2008GL035237, 2008.

Gao, R.S., J.P. Schwarz, K.K. Kelly, D.W. Fahey, L.A. Watts, T.L. Thompson, J.R. Spackman, J.G. Slowik, E.S. Cross, J.-H. Han, P. Davidovits, T.B. Onasch and D.R. Worsnop, A novel method for estimating light-scattering properties of soot aerosols using a modified single-particle soot photometer, Aerosol Sci. Technol., 41, 125-135, 2007.

Schwarz, J.P.,  R.S. Gao, J.R. Spackman, L.A. Watts, D.S. Thomson, D.W. Fahey, T.B. Ryerson, J. Peischl, J.S. Holloway, M. Trainer, G.J. Frost, T. Baynard, D.A. Lack, J.A. De Gouw, C. Warneke and L.A. Del Negro, Measurement of the mixing state, mass, and optical size of individual black carbon particles in urban and biomass burning emissions, Geophys. Res. Lett., 35, L13810, doi:10.1029/2008GL033968, 2008.

J.P. Schwarz, J.R. Spackman, D.W. Fahey, R.S. Gao, U. Lohmann, P. Stier, L.A. Watts, D.S. Thomson, D.A. Lack, L. Pfister, M.J. Mahoney, D. Baumgardner, J.C. Wilson, and J.M. Reeves, Coatings and their enhancement of black carbon light absorption in the tropical atmosphere, J. Geophys. Res.-Atm., 113, D03203, doi: 10.1029/2007JD009042, 2007.

Popp, P.J., T.P. Marcy, R.S. Gao, L.A. Watts, D.W. Fahey, E.C. Richard, S.J. Oltmans, M.L. Santee, N.J. Livesey, L. Froidevaux, B. Sen, G.C. Toon, K.A. Walker, C.D. Boone, and P.F. Bernath, Stratospheric correlation between nitric acid and ozone, J. Geophys. Res.-Atm., 114, D03305, doi: 10.1029/2008JD010875, 2008.