Title Authors Year
A Field-Study of Fertilization and Embryonic Development in the Common Frog (Rana-Temporaria) with Particular Reference to Acidity and Temperature

Beattie, R.…

1991
Effects of sulphur dioxide on the development of fungal diseases of winter barley in an open-air fumigation system.

Mansfield,…

1991
Environmental Health Criteria 125 Platinum

WHO,

 		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
Zeigerwerte von Pflanzen in Mitteleuropa

Ellenberg,…

1991
Effects of ionising radiation on aquatic organisms

National…

1991
Influence of HN3 and (HN4)2 SO4 on heathland vegetation

Van der…

1991
Forestry and soil protection in the UK

Moffatt, A.…

1991
The yield of winter cereals exposed to sulphur dioxide under field conditions.

McLeod, A.R…

1991
Physiological effects of long term exposure to low concentrations of SO2 and NH3 on poplar leaves.

Hove, L.W.A…

1991