Development of a Laser Photofragmentation/ Laser-Induced Fluorescence Instrument for Tropospheric Measurements of Nitrous AcidStevens, Philip and Dusanter, SebastienNational Science Foundation (NSF), Directorate for Geosciences, Division of Atmospheric and Geospace Sciences (ID: 1012161), $393,225USD, 09/01/2010 -- 08/31/2013