Fortschreibung und Bewertung von UN/ECE Protokollen zur Verminderung des grenzüberschreitenden Transports von Stickoxiden und Kohlenwasserstoffen aus stationären Quellen / United Nations/Economic Commission for Europe (UN/ECE), Convention on Long-range Transboundary Air Pollution. French-German Institute for Environmental Research, University of Karlsruhe, Germany. Prep. by O. Rentz .̤ ; Bd. 4: Background document on limit values for nitrogen oxides from stationary sources : report of the Task Force on the Assessment of Abatement Options/Techniques for Nitrogen Oxides from Stationary Sources (1999)