APIS Bibliography

Title	Authors	Year
Effects of nitrogen loading on wetland ecosystems, with particular reference to atmospheric deposition	Morris, J.T…	1991
Zeigerwerte von Pflanzen in Mitteleuropa	Ellenberg,…	1991
Physiological-effects of long-term exposure to low concentrations of SO2 and NH3 on poplar leaves	Hove, L.W.A…	1991
Concurrent exposure to SO2 and/or NO2 alters groweth and Yield responses of wheat and barley to low concentrations of O3.	Adaros, G…	1991
Changes in species composition of semi-natural vegetation associated with the increase in atmospheric inputs of nitrogen	Pitcairn, C…	1991
Nitrate in soil water	Westling, O…	1991
Nitrogen Uptake and Allocation by Calluna-Vulgaris (L) Hull and Deschampsia-Flexuosa (L) Trin Exposed to 15NH3	Dueck, T.A…	1991
Proceedings of the 2nd workshop on sources of variation in ecotoxicological tests with Daphnia magna	Van der…	1991
Acid deposition: its nature and impacts	Last, F.T…	1991
Acidic deposition: its nature and impacts	Last, F.T…	1991