| Title | Authors | Year |
|---|---|---|
| Influence of HN3 and (HN4)2 SO4 on heathland vegetation |
Van der… |
1991 |
| Acid deposition: its nature and impacts |
Last, F.T… |
1991 |
| Forestry and soil protection in the UK |
Moffatt, A.… |
1991 |
| The Distribution and Breeding Site Characteristics of Newts in Cumbria, England. |
Denton, J.S… |
1991 |
| Acidic deposition: its nature and impacts |
Last, F.T… |
1991 |
| Increases in soil acidity in north west Wales between 1957 and 1990 |
… |
1991 |
| Decline of ectomycorrhizal fungi in Europe. |
Arnolds, E… |
1991 |
| Acid Rain - Critical and Target Load Maps for the United Kingdom |
Environment… |
1991 |
| Zeigerwerte von Pflanzen in Mitteleuropa |
Ellenberg,… |
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 |