APIS Bibliography

Title	Authors	Year
Relationship between heavy metal accumulation and toxicity in Spirodella polyrhiza and Azolla pinnata	Gaur, J. P…	1994
Effect of different forms and sources of arsenic crop yield and arsenic concentration	Jiang, Q ;…	1994
Long-term changes in watershed retention of nitrogen - its causes and aquatic consequences	Stoddard, J…	1994
Critical levels for ozone; a UNECE workshop report	Fuhrer, J…	1994
Impacts of nitrogen deposition in terrestrial ecosystems in the United Kingdom	INDITE,	1994
Critical Loads of Acidity in the United Kingdom	UKCLAG,	1994
Group report: interactions among acidification, phosphorus, contaminants and biota in freshwater ecosystems	Landers, D.…	1994
An experimental investigation into the effects of atmospheric nitrogen deposition on two semi-natural grasslands	Morecroft,…	1994
Critical levels of air pollutants for Europe	Ashmore, M.…	1994
Impacts of nitrogen deposition on terrestrial ecosystems	UKRGIAN,…	1994