| Title | Authors | Year |
|---|---|---|
| Nitrogen and drought effects on ectomycorrhizae of Norway spruce [Picea abries L. (Karst.)]. |
Nilsen, P… |
1998 |
| Regional mass budgets of oxidized and reduced nitrogen and their relative contribution to the N inputs of sensitive ecosystems |
Fowler, D… |
1998 |
| Effects of atmospheric NH3 on epiphytic lichens in the Netherlands: the pitfalls of biological monitoring. |
Van Dobben… |
1998 |
| Ammonia concentrations at a site in southern Scotland from 2 yr of continuous measurements |
Burkhardt,… |
1998 |
| Nutrient disturbance through manganese accumulation in Douglas fir |
Kaus, A ;… |
1998 |
| National Recommended Water Quality Criteria |
EPA, US |
1998 |
| Pollution - Recovery of breeding success in wild birds. |
Eeva, T.; E… |
1998 |
| Early effects of acid mist on Sitka spruce planted on acid peat. |
Sheppard, L… |
1998 |
| Some effects of acid rain on the mobilisation of elements from bird eggs. |
Pyatt, F.B… |
1998 |
| UNECE Critical Levels Workshop Proceedings |
Guderian, R… |
1998 |