1. Abdul-Khalek, I. S., & Kittelson, D. B. (1995). Real time measurement of volatile and solid exhaust particles using a mini-catalyst. SAE Paper No. 950236.
2. Ayala, A., Olson, B., & Cantrell, B. (2002). Working quality assurance project plan for diesel aerosol sampling methodology. (93pp.) (CRC Project E-43). Final Report, April 2002, (Available from CRC, Alpharetta, GA).
3. Ayala, A., Olson, B., Cantrell, B., Drayton, M., & Barsic, N. (2003). Estimation of diffusion losses when sampling diesel aerosol: A quality assurance measure. Society of Automotive Engineers Technical Paper Series 2003-01-1896, Warrendale, PA.
4. Cadle, S. H., Mulawa, P., Hunsanger, E. C., Nelson, K., Ragazzi, R. A., Barrett, R., et al. (1998). Measurement of exhaust particulate matter emissions from in-use light-duty motor vehicles in the Denver, Colorado Area (142pp.). Coordinating Research Council Project E-24-1 Final Report, (142pp.). CRC, Atlanta, GA. Available at 〈http://www.nfraqs.colostate.edu〉.
5. California Air Resources Board (1996). Speed versus time data for California's unified driving cycle. Available at 〈http://www.arb.ca.gov/msprog/obdprog/uccycle.doc〉.