Title Authors Year
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
Action for Scotland's Biodiversity

Usher, (Eds…

1999
Mapping of ammonia pollution with epiphytic lichens in the Netherlands

Van Herk, C…

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

Freitas, M…

1999
Closing the global N2O budget: a retrospective analysis 1500 - 1994

Kroeze, C…

1999
Changes in distribution and abundance of submerged macrophytes in the Inner Bay at Long Point, Lake Erie: Implications for foraging waterfowl

Knapton, R.…

1999
National Monitoring Programme - Survey of the Quality of UK Coastal Waters

Group,…

1998
Environmental Health Criteria 200 Copper

WHO,

 		1998
Significance of soil properties for content and distribution of cadmium and lead in natural calcareous soils

Sanchez-…

1998
Nutrient disturbance through manganese accumulation in Douglas fir

Kaus, A ;…

1998