TY - JOUR A1 - Marley, N. A. A1 - Gaffney, J. S. A1 - Ramos-Villegas, R. A1 - Cárdenas González, B. T1 - Comparison of measurements of peroxyacyl nitrates and primary carbonaceous aerosol concentrations in Mexico City determined in 1997 and 2003 JO - Atmos. Chem. Phys. J1 - ACP VL - 7 IS - 9 SP - 2277 EP - 2285 Y1 - 2007/05/04 PB - Copernicus Publications SN - 1680-7324 UR - http://www.atmos-chem-phys.net/7/2277/2007/ L1 - http://www.atmos-chem-phys.net/7/2277/2007/acp-7-2277-2007.pdf DO - 10.5194/acp-7-2277-2007 ER -