APIS Bibliography

Title	Authors	Year
Distribution and decline of endangered herbaceous heathland species in relation to the chemical composition of the soil	Houdijk, A.…	1993
Effect of acid rain on pine needles as food for capercaillie in winter	Spidsx, T.K…	1993
The Environmental Implications of UK Sulphur Emission Policy Options for England and Wales	Farmer, A.M…	1993
North Sea quality status report 1993	OSPARCOM,…	1993
Atmospheric deposition of sulphur and nitrogen in heathland ecosystems.	Bobbink, R…	1993
The Deposition of Atmospheric Ammonia and Its Effects on Plants	Pearson, J…	1993
Nitrogen and phosphorus concentrations and N:P ratios in Norwegian lakes. Perspective on nutrient limitation	Faafeng, B…	1993
Direct damage to vegetation caused by acid rain and polluted cloud: definition of critical levels for forest trees.	Cape, J.N…	1993
Impacts of sulphur and nitrogen deposition on sites and species of nature conservation importance in Great Britain	Woodin, S.J…	1993
The exchange of ammonia between the atmosphere and plant communities.	Sutton, M.A…	1993