Title:Photochemical age determinations in the Phoenix metropolitan area
Author:Kleinman, Lawerence I.; Daum, Peter H.; Lee, Yin-Nan; Nunnermacker, Linda J.; Springston, Stephen R.; Weinstein-Llyod, Judith; Hyde, Peter; Doskey, Paul; Rudolph, J.; Fast, Jerome; Berkowitz, CarlDate:2003