O. Gustafsson, Krusa, M., Zencak, Z., Sheesley, R. J., Granat, L., Engstrom, E., Praveen, P. S., Rao, P. S. P., Leck, C., and Rodhe, H.,
“Brown Clouds over South Asia: Biomass or Fossil Fuel Combustion?”,
Science, vol. 323, no. 5913, pp. 495-498, 2009.
R. J. Sheesley, Krusa, M., Krecl, P., Johansson, C., and Gustafsson, O.,
“Source apportionment of elevated wintertime PAHs by compound-specific radiocarbon analysis”,
Atmospheric Chemistry and Physics, vol. 9, no. 10, pp. 3347-3356, 2009.