APIS Bibliography

Title	Authors	Year
Nitrate in soil water	Westling, O…	1991
Changes in species composition of semi-natural vegetation associated with the increase in atmospheric inputs of nitrogen	Pitcairn, C…	1991
Acid rain since 1985 - times are changing	Brydges, T.…	1991
Effects of sulphur dioxide on the development of fungal diseases of winter barley in an open-air fumigation system.	Mansfield,…	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
Single and Interactive Effects of Low Levels of O3, SO2 and NO2 on the Growth and Yield of Spring Rape.	Adaros, G…	1991
Environmental Health Criteria 125 Platinum	WHO,	1991
Zeigerwerte von Pflanzen in Mitteleuropa	Ellenberg,…	1991
Seasonal variations in acidic pollutant inputs and their effects on the chemistry of stemflow, bark and epiphyte tissues in three oak woodlands in N.W. Britain	Farmer, A.M…	1991
Influence of HN3 and (HN4)2 SO4 on heathland vegetation	Van der…	1991