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
How Britain hides its acid soil	Pearce, F…	1993
Effect of acid rain on pine needles as food for capercaillie in winter	Spidsx, T.K…	1993
Urban Air Quality in the United Kingdom. First Report of the Quality of Urban Air Review Group	Group,…	1993
North Sea quality status report 1993	OSPARCOM,…	1993
Air Pollution and Tree Health in the United Kingdom	DOE, .	1993
The effect of external stress and disturbance factors on Calluna dominated heathland vegetation.	Berdowski,…	1993
Observations on the changes in nitrate concentrations in seven upland moorland catchments in north eastern Scotland	Black, K.E…	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