TY - GEN AU - Allegrini, I. AU - AU - Febo, A. TI - Field intercomparison exercise on nitric acid and nitrate measurement methods and data T2 - Air Pollution Research Report VL - 22 SN - 2872630163 PY - 1988/// CY - Brussels PB - GUYOT KW - POLUIÇÃO DO AR KW - INMG KW - 551.5 KW - med KW - fre ER -