TY - JOUR A1 - Norman, M. A1 - Spirig, C. A1 - Wolff, V. A1 - Trebs, I. A1 - Flechard, C. A1 - Wisthaler, A. A1 - Schnitzhofer, R. A1 - Hansel, A. A1 - Neftel, A. T1 - Intercomparison of ammonia measurement techniques at an intensively managed grassland site (Oensingen, Switzerland) JO - Atmos. Chem. Phys. J1 - ACP VL - 9 IS - 8 SP - 2635 EP - 2645 Y1 - 2009/04/16 PB - Copernicus Publications SN - 1680-7324 UR - https://acp.copernicus.org/articles/9/2635/2009/ L1 - https://acp.copernicus.org/articles/9/2635/2009/acp-9-2635-2009.pdf DO - 10.5194/acp-9-2635-2009 ER -