APIS Bibliography

Title	Authors	Year
Insects and Pollution	Helivvaara…	1993
Stratospheric Aerosol Optical Depths, 1850-1990.	Sato, M. ;…	1993
North Sea quality status report 1993	OSPARCOM,…	1993
Effects of acidic gases and mists on the reproductive capability of 3 fern species	Lawrence, P…	1993
Terrestrial SSSIs at risk from acidification in Scotland	Ross, A.…	1993
Observations on the changes in nitrate concentrations in seven upland moorland catchments in north eastern Scotland	Black, K.E…	1993
Nitrogen and phosphorus concentrations and N:P ratios in Norwegian lakes. Perspective on nutrient limitation	Faafeng, B…	1993
The influence of nitrogen fertilization on ectomycorrhizas and their fungal corpophores in young stands of Pinus sylvestris	…	1993
Terrestrial SSSIs at risk from soil acidification in Wales	Sketch, C.A…	1993
Chromium toxicity in Salvia scarea I Effects of hexavalent chromium on seed germination and seedline development	Corraddi, M…	1993