T. A. H. A R L E Y

Effects of Vehicle Speed and Engine Load on Motor Vehicle Emissions

R. O B E R, W. J. K E A N, T. A. H. A R L E Y, .

Measurement of Nitrous Acid in Motor Vehicle Exhaust

T. A. H. A R L E Y, T. H. O M A, S. W. K I R C H S T E T T E R A N, 2022 .

Impact of Oxygenated Gasoline Use on California Light-Duty Vehicle Emissions

T. A. H. A R L E Y, T. H. O M A, D. R. O B E R, 2022 .

Impact of California Reformulated Gasoline on Motor Vehicle Emissions . 1 . Mass Emission Rates

T. A. H. A R L E Y, T. H. O M A, D. R. O B E R, 1998 .