%0 Journal Article %A Thomas W Kirchstetter %A Brett C Singer %A Robert A Harley %A Gary R Kendall %A Michael Traverse %B Environmental Science & Technology %D 1999 %N 2 %P 318-328 %R 10.1021/es9803714 %T Impact of California reformulated gasoline on motor vehicle emissions: 1. Mass emission rates %V 33 %8 01/1999