Critical levels for ozone-level II : workshop under the convention on long-range transboundary air pollution of the UN/ECE Gerzensee, Switzerland, 11-15 April 1999. -- Bern : Swiss Agency for the Environment, Forests and Landscape, 1999. -- 333 s. : obr., tab. ; 30 cm. -- (Environmental documentation ; 115). -- (brož.) : 250.00

504.3.054+504.3.064
ZV001