1. Calculations of emissions from German agriculture—National Emission Inventory Report (NIR) 2004 for 2002 Methods and Data (GAS-EM);Dämmgen;FAL Agricult. Res. Special Issue,2004
2. Dämmgen, U., Menzi. H., Webb, J., 2003. Background on ammonia (and other gaseous) emissions from agriculture: UNECE CLRTAP Task Force on Emission Inventories and Projections Agriculture and Nature Panel (http://air-climate.eionet.eu.int/docs/meetings/030227_AgricEmiss/3_Backgrnd_Agric_Em_NH3_ Ulrich_Daemmgen.pdf).
3. EMEP, 2003a. Joint EMEP/CORINAIR Emission Inventory Guidebook, third ed., October 2002 (updated 2003) (http://tfeip-secretariat.org/unece.htm).
4. EMEP, 2003b. Joint EMEP/CORINAIR Emission Inventory Guidebook, third ed., October 2002 (updated 2003): Glossary (http://tfeip-secretariat.org/unece.htm).
5. European Parliament, 2001. Directive 2001/81/EC of the European Parliament and of the Council of 23 October 2001 on national emission ceilings for certain atmospheric pollutants. Official Journal L 309 of 27.11.2001, also http://europa.eu.int/scadplus/leg/en/lvb/l28095.htm.