Title Authors Year
Ranking of epiphytic lichen sensitivity to air pollution using survey data: A comparison of indicator scales

Van Dobben…

1999
Action for Scotland's Biodiversity

Usher, (Eds…

1999
Leaf injury characteristics of grassland species exposed to ozone in relation to soil moisture condition and vapour pressure deficit.

Bungener, P…

1999
Distribution in Portugal of some pollutants in the lichen Parmelia sulcata

Freitas, M…

1999
Undergrowth as a biomonitor for deposition of N and acidity in pine forest.

Van Dobben…

1999
Nitrogen deposition makes a minor contribution to carbon sequestration in temperate forests.

Nadelhoffer…

1999
The effect of increased deposition of atmospheric N on Cv in upland Britain.

Carroll, J.…

1999
Protocol to abate acidification, eutrophication and ground-level ozone.

UNECE, .…

1999
Inventory of information sources on chemicals Persistent Organic Pollutants

UNEP,

 		1999
Factors influencing nitrogen saturation in forest ecosystems: Advances in our understanding since the mid 1980s. in the impact of nitrogen deposition on natural and semi-natural ecosystems

Wilson, E.J…

1999