@article {1939, title = {Absence of 14C in PM2.5 Emissions from Gasohol Combustion in Small Engines}, journal = {Aerosol Science and Technology}, year = {2006}, note = {id: 1699}, month = {2006}, author = {Lewis, C. W. and Volkens, J. and Braddock, J. N. and Crews, W. S. and Lonneman, W. A. and McNichol, A. P.} }