1. Areskoug, H., Johansson, C., Alesand, T., Hedberg, E., Ekengren, T., Vesely, V., Wideqvist, U., Hansson, H.-C., 2004. Concentrations and sources of PM10 and PM2.5 in Sweden. ITM-Report No. 110, Stockholm, Sweden. 〈www.itm.su.se/reflab/dokument〉.
2. Elemental characterization of PM10, PM2.5 and PM1 in the town of Genoa (Italy);Ariola;Chemosphere,2006
3. Elemental carbon-based method for monitoring occupational exposures to particulate diesel exhaust;Birch;Aerosol Science and Technology,1996
4. Draxler, R.R., Rolph, G.D., 2003. HYSPLIT (HYbrid Single-Particle Lagrangian Integrated Trajectory) Model access via NOAA ARL READY Website (〈http://www.arl.noaa.gov/ready/hysplit4.html〉). NOAA Air Resources Laboratory, Silver Spring, MD.
5. Drechsler, S., Uhrner, U., Lumpp, R., 2006. Sensitivity of urban and rural ammonium nitrate particulate matter to precursor emissions in Southern Germany. Workshop on Contribution of Natural Sources to PM Levels in Europe, JRC ISPRA, 12–13 October 2006, 〈http://natsources.jrc.it/〉.