| Title | Authors | Year |
|---|---|---|
| Zeigerwerte von Pflanzen in Mitteleuropa |
Ellenberg,… |
1991 |
| Effects of ionising radiation on aquatic organisms |
National… |
1991 |
| Physiological effects of long term exposure to low concentrations of SO2 and NH3 on poplar leaves. |
Hove, L.W.A… |
1991 |
| Mechansims of adaptions of plants to acid soils |
Marschner,… |
1991 |
| Single and Interactive Effects of Low Levels of O3, SO2 and NO2 on the Growth and Yield of Spring Rape. |
Adaros, G… |
1991 |
| Critical Load Maps for the United Kingdom I: Soil |
UKCLAG, |
1991 |
| Effects of nitrogen loading on wetland ecosystems, with particular reference to atmospheric deposition |
Morris, J.T… |
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 |
| Air pollution and agriculture |
Ashmore, M.… |
1991 |
| Physiological-effects of long-term exposure to low concentrations of SO2 and NH3 on poplar leaves |
Hove, L.W.A… |
1991 |