| Title | Authors | Year |
|---|---|---|
| UNECE Critical Levels Workshop Proceedings |
Guderian, R… |
1998 |
| Effects of simulated N deposition on understorey vegetation of a boreal coniferous forest. |
Nordin, A… |
1998 |
| The nitrogen content of upland rivers in Britain: the significance of organic N |
Chapman, P.… |
1998 |
| Differential effects of ammonium nitrate on three heathland species |
De Graaf, M… |
1998 |
| Effects of atmospheric NH3 on epiphytic lichens in the Netherlands: The pitfalls of biological monitoring |
Dobben, H.F… |
1998 |
| Nitrogen deposition and ectomycorhizas |
Wallenda, T… |
1998 |
| Impacts and fate of experimentally enhanced nitrogen deposition on a British lowland heath. |
Power, S.;… |
1998 |
| Dispersion, deposition and impacts of atmospheric ammonia: quantifying local budgets and spatial variability |
Sutton, M.A… |
1998 |
| Boron, zinc iron and managanese content in four grassland species |
Adarve, M.… |
1998 |
| Environmental Health Criteria 200 Copper |
WHO, |
1998 |