@article {13373,
	title = {Comment on "Effects of the physical state of tropospheric ammonium-sulfate-nitrate particles in global aerosol direct radiative forcing"},
	journal = {Atmospheric Chemistry and Physics},
	volume = {3},
	year = {2003},
	pages = {S2445-S2448},
	author = {Martin, S. T. and Bertram, A. K.}
}
