APIS Bibliography

Title	Authors	Year
Physiological-effects of long-term exposure to low concentrations of SO2 and NH3 on poplar leaves	Hove, L.W.A…	1991
Comparisons of 3 Woodland Sites in NW Britain Differing in Richness of the Epiphytic Lobarion-Pulmonariae Community and Levels of Wet Acidic Deposition	Farmer, A.M…	1991
Nitrate in soil water	Westling, O…	1991
A Field-Study of Fertilization and Embryonic Development in the Common Frog (Rana-Temporaria) with Particular Reference to Acidity and Temperature	Beattie, R.…	1991
Acid rain since 1985 - times are changing	Brydges, T.…	1991
Decline of ectomycorrhizal fungi in Europe.	Arnolds, E…	1991
Zeigerwerte von Pflanzen in Mitteleuropa	Ellenberg,…	1991
Influence of HN3 and (HN4)2 SO4 on heathland vegetation	Van der…	1991
Proceedings of the 2nd workshop on sources of variation in ecotoxicological tests with Daphnia magna	Van der…	1991
Nitrogen Uptake and Allocation by Calluna-Vulgaris (L) Hull and Deschampsia-Flexuosa (L) Trin Exposed to 15NH3	Dueck, T.A…	1991